Xerox Corp
Xerox CorpActive Patents
1
Total Holdings
436
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| EP1016953A2 | Multi-level selection methods and apparatus using context i… | Expired / Lapsed | 1999-12-24 | — | 3 | Details |
| EP0949571A2 | Document re-authoring systems and methods for providing dev… | Expired / Lapsed | 1999-04-07 | — | 10 | Details |
| EP0933712A2 | Method and system for generating document summaries with na… | Expired / Lapsed | 1999-01-14 | — | 10 | Details |
| EP0902582A2 | User interface with immediate indicators of concurrence, in… | Expired / Lapsed | 1998-09-11 | — | 10 | Details |
| EP0893760A2 | Context-sensitive document transactions | Expired / Lapsed | 1998-07-16 | — | 11 | Details |
| EP0889417A2 | Text genre identification | Expired / Lapsed | 1998-07-01 | — | 10 | Details |
| EP0821313A1 | Method and apparatus for organizing a work space for a comp… | Expired / Lapsed | 1997-06-25 | — | 10 | Details |
| EP0748096A2 | Event consistent graphical user interface on a high communi… | Expired / Lapsed | 1996-06-05 | — | 6 | Details |
| EP0737927A2 | Automatic method of generating thematic summaries | Expired / Lapsed | 1996-03-29 | — | 7 | Details |
| EP0694829A1 | A method and apparatus for visualization of database search… | Expired / Lapsed | 1995-07-20 | — | 9 | Details |
| EP0691619A2 | System for accessing and distributing electronic documents | Expired / Lapsed | 1995-06-27 | — | 10 | Details |
| EP0687987A1 | A method and apparatus for retrieving relevant documents fr… | Expired / Lapsed | 1995-06-14 | — | 10 | Details |
| EP0650144A1 | Image lens | Expired / Lapsed | 1994-10-25 | — | 10 | Details |
| EP0646857A1 | User interface for defining and automatically transmitting … | Expired / Lapsed | 1994-09-30 | — | 10 | Details |
| EP0635780A1 | User interface having clicktrough tools that can be compose… | Expired / Lapsed | 1994-07-20 | — | 7 | Details |
| EP0635779A1 | User interface having movable sheet with click-through tools | Expired / Lapsed | 1994-07-20 | — | 10 | Details |
| EP0574224A2 | Apparatus and method for multi stage/multi-process de compo… | Expired / Lapsed | 1993-06-08 | — | 13 | Details |
| EP0535986A2 | Method of operating a processor | Expired / Lapsed | 1992-10-02 | — | 11 | Details |
| EP0568161A1 | Interctive desktop system | Expired / Lapsed | 1992-01-14 | — | 10 | Details |
| EP0495622A2 | Indexing of data sets | Expired / Lapsed | 1992-01-14 | — | 15 | Details |
| EP0494106A1 | Apparatus for displaying display regions on a visual display | Expired / Lapsed | 1992-01-02 | — | 10 | Details |
| EP0493091A1 | Method and system for embedding machine readable digital da… | Expired / Lapsed | 1991-12-23 | — | 10 | Details |
| EP0478340A2 | Electronic reprographic printing system | Expired / Lapsed | 1991-09-27 | — | 12 | Details |
| EP0476972A2 | Touch screen user interface with expanding touch locations … | Expired / Lapsed | 1991-09-17 | — | 6 | Details |
| EP0473960A2 | Hierarchical shared books with database | Expired / Lapsed | 1991-08-07 | — | 20 | Details |
| EP0469923A2 | Image display systems | Expired / Lapsed | 1991-08-02 | — | 10 | Details |
| EP0447095A2 | Workspace displays | Expired / Lapsed | 1991-03-05 | — | 12 | Details |
| EP0331329A1 | Touch dialogue user interface for reproduction machines | Expired / Lapsed | 1989-02-22 | — | 10 | Details |
| EP0070161A2 | Adaptive thresholder and method | Expired / Lapsed | 1982-07-09 | — | 7 | Details |
| EP0042206A2 | Electronic printer and method of reprogramming an electroni… | Expired / Lapsed | 1981-04-16 | — | 13 | Details |
| DE2724967A1 | GRAY SCALE INTERPOLATION METHOD AND DEVICE | Expired / Lapsed | 1977-06-02 | — | 0 | Details |
| DE2704291A1 | METHOD AND EQUIPMENT FOR CONTROLLING THE INTENSITY OF A LAS… | Expired / Lapsed | 1977-02-02 | — | 0 | Details |
| DE2549639A1 | RUNNER POSITIONING DEVICE | Expired / Lapsed | 1975-11-05 | — | 0 | Details |
| DE2456540A1 | SIGNAL PROCESSING DEVICE | Expired / Lapsed | 1974-11-29 | — | 0 | Details |
| DE2231949A1 | TORQUE TOOL | Expired / Lapsed | 1972-06-29 | — | 0 | Details |
| BE763540A | LAYERED IMAGE TRAINING MEMBER AND MANUFACTURING METHOD. | Expired / Lapsed | 1971-02-26 | — | 0 | Details |
| GB1320524A | Continuous tone facsimile transmission | Expired / Lapsed | 1970-08-12 | — | 0 | Details |
| US8032841B2 | Exception page programming system | Active / In Force | 2007-07-26 | 2011-10-04 | 17 | Details |
| USD557277S1 | Variable Information Suite dispatch application icon for a … | Expired / Lapsed | 2005-12-09 | 2007-12-11 | 1 | Details |
| USD545841S1 | Variable information suite web server application icon for … | Expired / Lapsed | 2005-12-09 | 2007-07-03 | 1 | Details |
| USD513753S1 | Touch base user interface service selection icon for a port… | Expired / Lapsed | 2004-05-03 | 2006-01-24 | 1 | Details |
| USD511526S1 | Touch base user interface service selection icon for a port… | Expired / Lapsed | 2004-05-03 | 2005-11-15 | 1 | Details |
| USD511169S1 | Touch base user interface service selection icon for a port… | Expired / Lapsed | 2004-05-03 | 2005-11-01 | 1 | Details |
| USD511168S1 | Touch base user interface service selection icon for a port… | Expired / Lapsed | 2004-05-03 | 2005-11-01 | 1 | Details |
| USD511172S1 | Touch base user interface service selection icon for a port… | Expired / Lapsed | 2004-05-03 | 2005-11-01 | 1 | Details |
| US6934860B1 | System, method and article of manufacture for knowledge-bas… | Expired / Lapsed | 2000-05-08 | 2005-08-23 | 21 | Details |
| USD507577S1 | Migration pane window for a touch-based user interface for … | Expired / Lapsed | 2004-07-16 | 2005-07-19 | 1 | Details |
| US6752317B2 | Marking medium area with encoded identifier for producing a… | Expired / Lapsed | 2001-10-09 | 2004-06-22 | 15 | Details |
| US6563829B1 | Method for providing integrated packet services over a shar… | Expired / Lapsed | 1999-03-25 | 2003-05-13 | 12 | Details |
| US6562076B2 | Extending application behavior through active properties at… | Expired / Lapsed | 1998-08-31 | 2003-05-13 | 13 | Details |
| US6562077B2 | Sorting image segments into clusters based on a distance me… | Expired / Lapsed | 1997-11-14 | 2003-05-13 | 26 | Details |
| US6539390B1 | Integrated development environment for aspect-oriented prog… | Expired / Lapsed | 1999-07-20 | 2003-03-25 | 21 | Details |
| US6501485B1 | Message management system for a user interface of a multifu… | Expired / Lapsed | 1998-10-29 | 2002-12-31 | 13 | Details |
| US6486895B1 | Display system for displaying lists of linked documents | Expired / Lapsed | 1995-09-08 | 2002-11-26 | 27 | Details |
| US6470155B1 | Multi-market optimized user interface assembly and a reprog… | Expired / Lapsed | 2001-04-18 | 2002-10-22 | 18 | Details |
| US6459442B1 | System for applying application behaviors to freeform data | Expired / Lapsed | 1999-12-01 | 2002-10-01 | 22 | Details |
| US6396512B1 | Information sharing system for personal electronic time man… | Expired / Lapsed | 1999-08-27 | 2002-05-28 | 12 | Details |
| US6377288B1 | Domain objects having computed attribute values for use in … | Expired / Lapsed | 1998-01-12 | 2002-04-23 | 12 | Details |
| US6377583B1 | Rate shaping in per-flow output queued routing mechanisms f… | Expired / Lapsed | 1997-06-11 | 2002-04-23 | 19 | Details |
| US6360951B1 | Hand-held scanning system for heuristically organizing scan… | Expired / Lapsed | 1999-12-16 | 2002-03-26 | 28 | Details |
| US6335800B1 | Method of multidimensional interpolation for color transfor… | Expired / Lapsed | 1998-12-11 | 2002-01-01 | 18 | Details |
| US6330976B1 | Marking medium area with encoded identifier for producing a… | Expired / Lapsed | 1999-03-25 | 2001-12-18 | 34 | Details |
| US6321372B1 | Executable for requesting a linguistic service | Expired / Lapsed | 1998-12-23 | 2001-11-20 | 20 | Details |
| US6297824B1 | Interactive interface for viewing retrieval results | Expired / Lapsed | 1998-11-25 | 2001-10-02 | 4 | Details |
| US6279014B1 | Method and system for organizing documents based upon annot… | Expired / Lapsed | 1997-09-15 | 2001-08-21 | 38 | Details |
| US6275301B1 | Relabeling of tokenized symbols in fontless structured docu… | Expired / Lapsed | 1999-05-14 | 2001-08-14 | 26 | Details |
| US6256649B1 | Animated spreadsheet for dynamic display of constraint grap… | Expired / Lapsed | 1998-06-17 | 2001-07-03 | 16 | Details |
| US6243075B1 | Graspable device manipulation for controlling a computer di… | Expired / Lapsed | 1997-08-29 | 2001-06-05 | 34 | Details |
| US6240429B1 | Using attached properties to provide document services | Expired / Lapsed | 1998-08-31 | 2001-05-29 | 23 | Details |
| US6230170B1 | Spatial morphing of text to accommodate annotations | Expired / Lapsed | 1998-06-17 | 2001-05-08 | 19 | Details |
| US6223145B1 | Interactive interface for specifying searches | Expired / Lapsed | 1998-11-25 | 2001-04-24 | 4 | Details |
| US6216087B1 | Infrared beacon positioning system | Expired / Lapsed | 1999-11-23 | 2001-04-10 | 24 | Details |
| US6185582B1 | Spreadsheet view enhancement system | Expired / Lapsed | 1998-06-17 | 2001-02-06 | 13 | Details |
| US6182901B1 | Orientational disambiguation for self-clocking glyph codes | Expired / Lapsed | 1995-09-21 | 2001-02-06 | 6 | Details |
| USD422583S | Touch video graphic icon for image shift on a portion of a … | Expired / Lapsed | 1989-04-24 | 2000-04-11 | 1 | Details |
| US5982993A | Method and apparatus for color replacement using an extende… | Expired / Lapsed | 1997-11-03 | 1999-11-09 | 18 | Details |
| US5870530A | System for printing color images with extra colorants in ad… | Expired / Lapsed | 1996-09-27 | 1999-02-09 | 9 | Details |
| US5795325A | Methods and apparatus for anchoring an occluding member | Expired / Lapsed | 1995-12-11 | 1998-08-18 | 24 | Details |
| US5687303A | Printer controller for object optimized printing | Expired / Lapsed | 1995-06-07 | 1997-11-11 | 29 | Details |
| US5581637A | System for registering component image tiles in a camera-ba… | Expired / Lapsed | 1996-04-16 | 1996-12-03 | 7 | Details |
| EP0495612B1 | A data access system | Expired / Lapsed | 1992-01-14 | 1996-04-10 | 7 | Details |
| US5504843A | Apparatus and method for processing a stream of image data … | Expired / Lapsed | 1995-06-06 | 1996-04-02 | 23 | Details |
| US5477345A | Apparatus for subsampling chrominance | Expired / Lapsed | 1993-12-15 | 1995-12-19 | 10 | Details |
| US4475787B1 | Single facet wobble free scanner. | Expired / Lapsed | 1982-09-24 | 1995-04-11 | 0 | Details |
| US5371531A | Thermal ink-jet printing with fast- and slow-drying inks | Expired / Lapsed | 1992-11-12 | 1994-12-06 | 18 | Details |
| US5357536A | Method and apparatus for the positioning of laser diodes | Expired / Lapsed | 1993-05-07 | 1994-10-18 | 29 | Details |
| US5128282A | Process for separating image sensor dies and the like from … | Expired / Lapsed | 1991-11-04 | 1992-07-07 | 8 | Details |
| US5113517A | Concurrent display of data from two different processors ea… | Expired / Lapsed | 1990-01-24 | 1992-05-12 | 30 | Details |
| US5079723A | Touch dialogue user interface for reproduction machines | Expired / Lapsed | 1988-03-04 | 1992-01-07 | 15 | Details |
| US5065347A | Hierarchical folders display | Expired / Lapsed | 1988-08-11 | 1991-11-12 | 3 | Details |
| US5025314A | Apparatus allowing remote interactive use of a plurality of… | Expired / Lapsed | 1990-07-30 | 1991-06-18 | 15 | Details |
| US5000811A | Precision buttable subunits via dicing | Expired / Lapsed | 1989-11-22 | 1991-03-19 | 35 | Details |
| US4982344A | Accelerating link creation | Expired / Lapsed | 1988-05-18 | 1991-01-01 | 30 | Details |
| US4878070A | Thermal ink jet print cartridge assembly | Expired / Lapsed | 1988-10-17 | 1989-10-31 | 9 | Details |
| US4870644A | Control crash diagnostic strategy and RAM display | Expired / Lapsed | 1982-09-21 | 1989-09-26 | 9 | Details |
| US4833491A | Thermal ink jet printer adapted to operate in monochrome, h… | Expired / Lapsed | 1988-06-15 | 1989-05-23 | 10 | Details |
| USD298144S | Icon for voice file or the like | Expired / Lapsed | 1985-12-09 | 1988-10-18 | 1 | Details |
| USD297243S | Icon for a property sheet or the like | Expired / Lapsed | 1985-10-28 | 1988-08-16 | 1 | Details |
| USD296340S | Icon for an idle image or the like | Expired / Lapsed | 1985-12-09 | 1988-06-21 | 1 | Details |
| USD296218S | Icon for spelling dictionary or the like | Expired / Lapsed | 1985-12-09 | 1988-06-14 | 1 | Details |
| USD296114S | Icon for PC emulation window or the like | Expired / Lapsed | 1985-12-09 | 1988-06-07 | 1 | Details |
| US4748453A | Spot deposition for liquid ink printing | Expired / Lapsed | 1987-07-21 | 1988-05-31 | 9 | Details |
| USD295877S | Icon for canvas or the like | Expired / Lapsed | 1985-12-09 | 1988-05-24 | 1 | Details |
| USD295763S | Icon font or the like | Expired / Lapsed | 1985-12-09 | 1988-05-17 | 1 | Details |
| USD295765S | Icon for emulated fixed disk or the like | Expired / Lapsed | 1985-12-09 | 1988-05-17 | 1 | Details |
| USD295764S | Icon for telephone or the like | Expired / Lapsed | 1985-12-09 | 1988-05-17 | 1 | Details |
| USD295635S | Icon for icon editor or the like | Expired / Lapsed | 1985-12-09 | 1988-05-10 | 1 | Details |
| USD295630S | Icon for user profile or the like | Expired / Lapsed | 1985-12-09 | 1988-05-10 | 1 | Details |
| USD295636S | Icon for loader or the like | Expired / Lapsed | 1985-12-09 | 1988-05-10 | 1 | Details |
| USD295637S | Icon for broken document or the like | Expired / Lapsed | 1985-12-09 | 1988-05-10 | 1 | Details |
| USD295633S | Icon for PC emulation or the like | Expired / Lapsed | 1985-10-28 | 1988-05-10 | 1 | Details |
| USD295634S | Icon for application program or the like | Expired / Lapsed | 1985-10-28 | 1988-05-10 | 1 | Details |
| USD295632S | Icon for wastebasket or the like | Expired / Lapsed | 1985-10-28 | 1988-05-10 | 1 | Details |
| USD295631S | Icon for dividers or the like | Expired / Lapsed | 1985-10-28 | 1988-05-10 | 1 | Details |
| US4692188A | Preparation of ink jet compositions | Expired / Lapsed | 1985-10-15 | 1987-09-08 | 24 | Details |
| US4690391A | Method and apparatus for fabricating full width scanning ar… | Expired / Lapsed | 1983-01-31 | 1987-09-01 | 4 | Details |
| US4678322A | Method and apparatus for the prevention of unauthorized cop… | Expired / Lapsed | 1986-05-30 | 1987-07-07 | 8 | Details |
| US4639748A | Ink jet printhead with integral ink filter | Expired / Lapsed | 1985-09-30 | 1987-01-27 | 19 | Details |
| US4639073A | Electro-optic pulse imaging raster output scanner | Expired / Lapsed | 1984-03-19 | 1987-01-27 | 10 | Details |
| US4638369A | Edge extraction technique | Expired / Lapsed | 1984-09-04 | 1987-01-20 | 8 | Details |
| US4588667A | Electrophotographic imaging member and process comprising s… | Expired / Lapsed | 1984-05-15 | 1986-05-13 | 19 | Details |
| US4589090A | Remote processor crash recovery | Expired / Lapsed | 1982-09-21 | 1986-05-13 | 8 | Details |
| US4580148A | Thermal ink jet printer with droplet ejection by bubble col… | Expired / Lapsed | 1985-02-19 | 1986-04-01 | 7 | Details |
| US4580232A | Single point microprocessor reset | Expired / Lapsed | 1982-09-21 | 1986-04-01 | 3 | Details |
| US4559546A | Intensity control for the imaging beam of a raster scanner | Expired / Lapsed | 1984-09-04 | 1985-12-17 | 13 | Details |
| US4555785A | Optical repeater integrated lasers | Expired / Lapsed | 1984-03-15 | 1985-11-26 | 5 | Details |
| US4550333A | Light emitting semiconductor mount | Expired / Lapsed | 1983-09-13 | 1985-10-29 | 12 | Details |
| US4533853A | Mechanism and method for controlling the temperature and ou… | Expired / Lapsed | 1983-03-25 | 1985-08-06 | 6 | Details |
| US4521847A | Control system job recovery after a malfunction | Expired / Lapsed | 1982-09-21 | 1985-06-04 | 18 | Details |
| US4478483A | Variable length electro-optic waveguides and applications t… | Expired / Lapsed | 1982-05-10 | 1984-10-23 | 15 | Details |
| US4464450A | Multi-layer photoreceptor containing siloxane on a metal ox… | Expired / Lapsed | 1982-09-21 | 1984-08-07 | 24 | Details |
| US4432017A | Adjacent bilinear photosite imager | Expired / Lapsed | 1981-07-20 | 1984-02-14 | 15 | Details |
| US4427285A | Direct duplex printing on pre-cut copy sheets | Expired / Lapsed | 1981-02-27 | 1984-01-24 | 20 | Details |
| US4416755A | Apparatus and method for producing semiconducting films | Expired / Lapsed | 1981-04-03 | 1983-11-22 | 30 | Details |
| USD268345S | Copying machine | Expired / Lapsed | 1980-10-28 | 1983-03-22 | 1 | Details |
| US4376688A | Method for producing semiconductor films | Expired / Lapsed | 1981-04-03 | 1983-03-15 | 17 | Details |
| US4372515A | CRT Housing support and rocking tilt apparatus | Expired / Lapsed | 1980-09-08 | 1983-02-08 | 5 | Details |
| US4367478A | Pressure pulse drop ejector apparatus | Expired / Lapsed | 1980-10-03 | 1983-01-04 | 6 | Details |
| US4365889A | Document handling unit | Expired / Lapsed | 1980-11-10 | 1982-12-28 | 14 | Details |
| US4356347A | Integrated stylus array for printer operation | Expired / Lapsed | 1980-08-25 | 1982-10-26 | 26 | Details |
| US4355273A | Servo capture system | Expired / Lapsed | 1980-09-15 | 1982-10-19 | 5 | Details |
| US4349770A | Electronic damping apparatus | Expired / Lapsed | 1980-07-22 | 1982-09-14 | 15 | Details |
| US4336766A | Roll fusing apparatus for electrophotography and release ag… | Expired / Lapsed | 1980-11-24 | 1982-06-29 | 4 | Details |
| US4328426A | Filter for image pixels | Expired / Lapsed | 1980-08-04 | 1982-05-04 | 7 | Details |
| US4328450A | Closed loop velocity control system for a movable element | Expired / Lapsed | 1980-07-22 | 1982-05-04 | 11 | Details |
| US4327993A | Method and apparatus for performing job recovery in a repro… | Expired / Lapsed | 1979-10-30 | 1982-05-04 | 6 | Details |
| US4306008A | Imaging system with a diamine charge transport material in … | Expired / Lapsed | 1978-12-04 | 1981-12-15 | 7 | Details |
| US4303947A | Image interpolation system | Expired / Lapsed | 1980-04-28 | 1981-12-01 | 23 | Details |
| US4299504A | High capacity ribbon cartridge with surface drive | Expired / Lapsed | 1980-07-03 | 1981-11-10 | 14 | Details |
| US4299897A | Aromatic amino charge transport layer in electrophotography | Expired / Lapsed | 1980-02-15 | 1981-11-10 | 9 | Details |
| US4297653A | Hybrid semiconductor laser/detectors | Expired / Lapsed | 1979-04-30 | 1981-10-27 | 12 | Details |
| US4291110A | Siloxane hole trapping layer for overcoated photoreceptors | Expired / Lapsed | 1979-06-11 | 1981-09-22 | 9 | Details |
| US4290000A | Power amplifier with current limiter circuit | Expired / Lapsed | 1979-08-02 | 1981-09-15 | 2 | Details |
| US4288821A | Multi-resolution image signal processing apparatus and meth… | Expired / Lapsed | 1980-06-02 | 1981-09-08 | 36 | Details |
| US4286033A | Trapping layer overcoated inorganic photoresponsive device | Expired / Lapsed | 1980-03-05 | 1981-08-25 | 5 | Details |
| US4281904A | TIR Electro-optic modulator with individually addressed ele… | Expired / Lapsed | 1979-06-21 | 1981-08-04 | 18 | Details |
| US4280125A | Thin vacuum panel display device | Expired / Lapsed | 1979-07-27 | 1981-07-21 | 11 | Details |
| US4265990A | Imaging system with a diamine charge transport material in … | Expired / Lapsed | 1978-12-04 | 1981-05-05 | 7 | Details |
| US4255754A | Differential fiber optic sensing method and apparatus for i… | Expired / Lapsed | 1979-03-19 | 1981-03-10 | 32 | Details |
| US4248528A | Copier with document sensing control | Expired / Lapsed | 1979-04-04 | 1981-02-03 | 13 | Details |
| US4246076A | Method for producing nozzles for ink jet printers | Expired / Lapsed | 1979-12-06 | 1981-01-20 | 3 | Details |
| US4245258A | Method and apparatus for reduction of false contours in ele… | Expired / Lapsed | 1979-11-05 | 1981-01-13 | 18 | Details |
| US4233384A | Imaging system using novel charge transport layer | Expired / Lapsed | 1979-04-30 | 1980-11-11 | 7 | Details |
| US4230394A | Mirror facet tracker using spherical mirrors | Expired / Lapsed | 1979-04-02 | 1980-10-28 | 5 | Details |
| US4229751A | Ink jet head | Expired / Lapsed | 1979-04-30 | 1980-10-21 | 4 | Details |
| US4194221A | Automatic multimode continuous halftone line copy reproduct… | Expired / Lapsed | 1978-12-26 | 1980-03-18 | 24 | Details |
| US4193092A | Image interpolation system | Expired / Lapsed | 1978-06-21 | 1980-03-11 | 15 | Details |
| US4193096A | Half tone encoder/decoder | Expired / Lapsed | 1977-04-04 | 1980-03-11 | 13 | Details |
| US4186299A | Reproduction machine with different operating programs | Expired / Lapsed | 1977-08-30 | 1980-01-29 | 3 | Details |
| US4183094A | Optical storage medium using the frequency domain | Expired / Lapsed | 1978-03-20 | 1980-01-08 | 14 | Details |
| US4151944A | Staplers | Expired / Lapsed | 1977-09-28 | 1979-05-01 | 7 | Details |
| US4149091A | Scanning apparatus | Expired / Lapsed | 1977-05-02 | 1979-04-10 | 13 | Details |
| US4149090A | Crossover arrangement for multiple scanning arrays | Expired / Lapsed | 1977-05-02 | 1979-04-10 | 8 | Details |
| US4149145A | Fax processor | Expired / Lapsed | 1977-02-17 | 1979-04-10 | 6 | Details |
| USD251427S | Automatic telephone dialer for facsimile terminals and the … | Expired / Lapsed | 1977-05-03 | 1979-03-27 | 1 | Details |
| US4144561A | Chip topography for MOS integrated circuitry microprocessor… | Expired / Lapsed | 1977-07-08 | 1979-03-13 | 10 | Details |
| US4144547A | Apparatus and method for encoding halftone and line copy da… | Expired / Lapsed | 1977-04-04 | 1979-03-13 | 20 | Details |
| US4140529A | Charge transport overlayer in photoconductive element and m… | Expired / Lapsed | 1977-09-22 | 1979-02-20 | 73 | Details |
| US4137565A | Direct memory access module for a controller | Expired / Lapsed | 1977-01-10 | 1979-01-30 | 32 | Details |
| US4136363A | Truncated run length encoding | Expired / Lapsed | 1976-12-29 | 1979-01-23 | 12 | Details |
| USD250765S | Fanfold sheet stacking tray | Expired / Lapsed | 1976-11-08 | 1979-01-09 | 1 | Details |
| US4134053A | Method and means for capturing magnetic tracks | Expired / Lapsed | 1976-10-26 | 1979-01-09 | 3 | Details |
| US4128299A | Waveguide optical modulator | Expired / Lapsed | 1977-05-12 | 1978-12-05 | 18 | Details |
| US4126722A | Fusing surface | Expired / Lapsed | 1976-10-18 | 1978-11-21 | 18 | Details |
| US4125318A | TIR modulator | Expired / Lapsed | 1977-04-01 | 1978-11-14 | 8 | Details |
| US4123154A | Combined corona generator and imaging surface cleaner | Expired / Lapsed | 1977-03-03 | 1978-10-31 | 6 | Details |
| US4115116A | Imaging member having a polycarbonate-biphenyl diamine char… | Expired / Lapsed | 1977-05-04 | 1978-09-19 | 7 | Details |
| US4112433A | Meniscus dampening drop generator | Expired / Lapsed | 1977-05-26 | 1978-09-05 | 16 | Details |
| US4110024A | Transfer assembly for electrostatic transfer of a toner ima… | Expired / Lapsed | 1976-05-14 | 1978-08-29 | 9 | Details |
| US4103331A | Data processing display system | Expired / Lapsed | 1977-05-25 | 1978-07-25 | 9 | Details |
| US4099112A | Method and means for seeking magnetic tracks | Expired / Lapsed | 1976-10-26 | 1978-07-04 | 9 | Details |
| US4096526A | Run length encoding and decoding methods and means | Expired / Lapsed | 1976-09-27 | 1978-06-20 | 10 | Details |
| US4095020A | Process for controlled phase transformation of alpha phase … | Expired / Lapsed | 1977-02-25 | 1978-06-13 | 3 | Details |
| US4092676A | Block length multiple plus run length residue codes for run… | Expired / Lapsed | 1976-12-29 | 1978-05-30 | 14 | Details |
| US4092675A | Truncated run length encoding with a modular variable lengt… | Expired / Lapsed | 1976-12-29 | 1978-05-30 | 10 | Details |
| US4086443A | Automatic dialer with a programmable pause | Expired / Lapsed | 1977-05-03 | 1978-04-25 | 6 | Details |
| US4083322A | Fuser wick | Expired / Lapsed | 1976-04-09 | 1978-04-11 | 4 | Details |
| US4074143A | Optoelectronic device with optical feedback | Expired / Lapsed | 1976-03-15 | 1978-02-14 | 5 | Details |
| US4066335A | Variable density lens | Expired / Lapsed | 1976-01-19 | 1978-01-03 | 4 | Details |
| US4065731A | Tandem laser assembly | Expired / Lapsed | 1976-04-27 | 1977-12-27 | 14 | Details |
| US4063189A | Leaky wave diode laser | Expired / Lapsed | 1976-04-08 | 1977-12-13 | 12 | Details |
| US4063220A | Multipoint data communication system with collision detecti… | Expired / Lapsed | 1975-03-31 | 1977-12-13 | 26 | Details |
| US4060316A | Imaging method | Expired / Lapsed | 1976-03-22 | 1977-11-29 | 17 | Details |
| US4059554A | Stabilized emulsion inks | Expired / Lapsed | 1976-05-28 | 1977-11-22 | 10 | Details |
| US4050058A | Microprocessor with parallel operation | Expired / Lapsed | 1975-10-24 | 1977-09-20 | 12 | Details |
| US4047949A | Composite layered imaging member for electrophotography | Expired / Lapsed | 1976-11-01 | 1977-09-13 | 34 | Details |
| US4047885A | Rotating wick oil dispensing system | Expired / Lapsed | 1976-05-26 | 1977-09-13 | 9 | Details |
| US4045218A | Method for electrostatically producing a color accented pho… | Expired / Lapsed | 1975-06-30 | 1977-08-30 | 5 | Details |
| US4043293A | Developability regulating apparatus | Expired / Lapsed | 1976-05-03 | 1977-08-23 | 18 | Details |
| US4043665A | Copier document handler | Expired / Lapsed | 1975-03-26 | 1977-08-23 | 6 | Details |
| US4039331A | Carrier bead coating compositions | Expired / Lapsed | 1976-03-24 | 1977-08-02 | 15 | Details |
| US4032977A | Gray scale interpolation technique | Expired / Lapsed | 1976-06-03 | 1977-06-28 | 30 | Details |
| US4027215A | Rotary machine | Expired / Lapsed | 1975-03-24 | 1977-05-31 | 49 | Details |
| US4026040A | Educational device for learning about inductors | Expired / Lapsed | 1973-07-26 | 1977-05-31 | 12 | Details |
| US4024544A | Meniscus dampening drop generator | Expired / Lapsed | 1975-11-21 | 1977-05-17 | 20 | Details |
| US4023894A | Transfer apparatus | Expired / Lapsed | 1975-07-11 | 1977-05-17 | 6 | Details |
| US4021650A | Velocity command signal generating apparatus | Expired / Lapsed | 1975-11-19 | 1977-05-03 | 31 | Details |
| US4019902A | Photoreceptor fabrication | Expired / Lapsed | 1975-08-15 | 1977-04-26 | 14 | Details |
| US4016099A | Method of forming encapsulated toner particles | Expired / Lapsed | 1972-03-27 | 1977-04-05 | 18 | Details |
| US4009388A | Arrangement for extending photosensor array resolution | Expired / Lapsed | 1975-10-30 | 1977-02-22 | 6 | Details |
| US4008955A | Fuser assembly for an electrophotograhic copying machine | Expired / Lapsed | 1975-05-12 | 1977-02-22 | 10 | Details |
| US4001500A | Amplifier for use in a document scanning system | Expired / Lapsed | 1974-11-21 | 1977-01-04 | 10 | Details |
| US4000460A | Digital circuit module test system | Expired / Lapsed | 1974-07-01 | 1976-12-28 | 10 | Details |
| US3993935A | Printed circuit board connection | Expired / Lapsed | 1974-12-16 | 1976-11-23 | 2 | Details |
| US3974906A | Endless loop ribbon cartridge with random storage | Expired / Lapsed | 1972-02-25 | 1976-08-17 | 5 | Details |
| US3973825A | Flat field scanning system | Expired / Lapsed | 1974-12-30 | 1976-08-10 | 21 | Details |
| US3971950A | Independent compression and positioning device for use in m… | Expired / Lapsed | 1975-04-14 | 1976-07-27 | 18 | Details |
| US3969618A | On line PROM handling system | Expired / Lapsed | 1974-11-29 | 1976-07-13 | 28 | Details |
| US3960445A | Color highlighting electrophotographic printing machine | Expired / Lapsed | 1974-02-13 | 1976-06-01 | 11 | Details |
| US3954259A | Double bar separator for a sheet receiving tray | Expired / Lapsed | 1974-11-25 | 1976-05-04 | 4 | Details |
| US3953207A | Composite layered photoreceptor | Expired / Lapsed | 1974-10-25 | 1976-04-27 | 11 | Details |
| US3952296A | Video signal generating apparatus with separate and simulta… | Expired / Lapsed | 1973-11-23 | 1976-04-20 | 14 | Details |
| US3944360A | Programmable controller for controlling reproduction machin… | Expired / Lapsed | 1974-08-12 | 1976-03-16 | 11 | Details |
| US3943495A | Microprocessor with immediate and indirect addressing | Expired / Lapsed | 1973-12-26 | 1976-03-09 | 15 | Details |
| US3940518A | Bake technique for manufacturing tetrafluoroethylene coated… | Expired / Lapsed | 1974-04-26 | 1976-02-24 | 11 | Details |
| US3938098A | Input/output connection arrangement for microprogrammable c… | Expired / Lapsed | 1973-12-26 | 1976-02-10 | 12 | Details |
| US3926762A | Rf sputtering of trigonal selenium films | Expired / Lapsed | 1974-09-24 | 1975-12-16 | 7 | Details |
| US3926518A | Optical scanning system | Expired / Lapsed | 1974-05-21 | 1975-12-16 | 2 | Details |
| US3926338A | Thermally insensitive particle concentration controller | Expired / Lapsed | 1973-11-05 | 1975-12-16 | 16 | Details |
| US3914049A | Optical scanning system | Expired / Lapsed | 1974-05-20 | 1975-10-21 | 6 | Details |
| US3914043A | Color accenting copying machine | Expired / Lapsed | 1974-03-29 | 1975-10-21 | 7 | Details |
| US3911420A | Display system including a high resolution character genera… | Expired / Lapsed | 1973-11-23 | 1975-10-07 | 27 | Details |
| US3907492A | Fusing apparatus | Expired / Lapsed | 1974-03-28 | 1975-09-23 | 9 | Details |
| US3900002A | Donor apparatus | Expired / Lapsed | 1973-08-30 | 1975-08-19 | 5 | Details |
| US3898377A | Video mixer | Expired / Lapsed | 1973-11-23 | 1975-08-05 | 20 | Details |
| US3883293A | Pressure roll construction | Expired / Lapsed | 1974-04-05 | 1975-05-13 | 4 | Details |
| US3880147A | R-R interval histogram instrument system | Expired / Lapsed | 1973-03-22 | 1975-04-29 | 9 | Details |
| US3872825A | Particle concentration detector | Expired / Lapsed | 1973-08-06 | 1975-03-25 | 25 | Details |
| US3856548A | Strippable overcoating for improved xerographic plates | Expired / Lapsed | 1973-01-05 | 1974-12-24 | 14 | Details |
| US3854449A | Development apparatus | Expired / Lapsed | 1972-05-22 | 1974-12-17 | 7 | Details |
| US3854943A | Manifold imaging method and member employing fundamental pa… | Expired / Lapsed | 1972-02-01 | 1974-12-17 | 41 | Details |
| US3851985A | Collar and method of making same | Expired / Lapsed | 1972-09-20 | 1974-12-03 | 8 | Details |
| US3847732A | Semi-encoded facsimile transmission | Expired / Lapsed | 1972-09-15 | 1974-11-12 | 17 | Details |
| US3847718A | Adhesive binding means for edge binding assembled pages tog… | Expired / Lapsed | 1971-11-01 | 1974-11-12 | 16 | Details |
| US3841827A | Toner release oil transfer pad | Expired / Lapsed | 1973-06-11 | 1974-10-15 | 5 | Details |
| US3838260A | Microprogrammable control memory diagnostic system | Expired / Lapsed | 1973-01-22 | 1974-09-24 | 14 | Details |
| US3835464A | Position indicator for a display system | Expired / Lapsed | 1973-01-11 | 1974-09-10 | 16 | Details |
| US3833293A | Method of creating color transparencies | Expired / Lapsed | 1973-07-20 | 1974-09-03 | 12 | Details |
| US3833911A | Reproduction system and method with simplex and duplex mode… | Expired / Lapsed | 1972-12-29 | 1974-09-03 | 12 | Details |
| US3815988A | Image density control apparatus | Expired / Lapsed | 1973-05-17 | 1974-06-11 | 12 | Details |
| US3815380A | Shaft coupling apparatus | Expired / Lapsed | 1972-12-04 | 1974-06-11 | 5 | Details |
| US3810105A | Computer input-output system | Expired / Lapsed | 1972-08-31 | 1974-05-07 | 24 | Details |
| US3799668A | Color standard and method of calibrating a multi-color elec… | Expired / Lapsed | 1973-03-12 | 1974-03-26 | 19 | Details |
| US3798030A | Photoelectrosolographic imaging method utilizing powder par… | Expired / Lapsed | 1972-10-20 | 1974-03-19 | 20 | Details |
| US3790158A | Automatic document handler | Expired / Lapsed | 1972-05-22 | 1974-02-05 | 8 | Details |
| US3778222A | Fire prevention apparatus | Expired / Lapsed | 1972-09-18 | 1973-12-11 | 14 | Details |
| US3776760A | Method for manufacturing a tetrafluoroethylene polymer-coat… | Expired / Lapsed | 1971-10-06 | 1973-12-04 | 2 | Details |
| US3776995A | Method of producing x-ray diffraction grating | Expired / Lapsed | 1970-10-15 | 1973-12-04 | 0 | Details |
| US3775655A | Method and apparatus for transducer temperature compensation | Expired / Lapsed | 1972-09-15 | 1973-11-27 | 19 | Details |
| US3774592A | Method for providing an improved body electrode electrical … | Expired / Lapsed | 1971-12-16 | 1973-11-27 | 4 | Details |
| US3775006A | Apparatus for optical color separation imaging | Expired / Lapsed | 1971-09-20 | 1973-11-27 | 8 | Details |
| US3771131A | Operating condition monitoring in digital computers | Expired / Lapsed | 1972-04-17 | 1973-11-06 | 7 | Details |
| US3759611A | Microimage ransom access and retrieval printer | Expired / Lapsed | 1972-05-01 | 1973-09-18 | 5 | Details |
| US3745972A | Wicking apparatus | Expired / Lapsed | 1971-07-20 | 1973-07-17 | 3 | Details |
| US3742484A | Character generating apparatus employing bit stream length … | Expired / Lapsed | 1971-12-28 | 1973-06-26 | 4 | Details |
| US3731175A | Servo system for velocity and position control | Expired / Lapsed | 1972-03-06 | 1973-05-01 | 30 | Details |
| US3726584A | Light modulation system | Expired / Lapsed | 1971-05-28 | 1973-04-10 | 22 | Details |
| US3727065A | Automatic developability control system | Expired / Lapsed | 1969-10-17 | 1973-04-10 | 19 | Details |
| US3722018A | Cleaning apparatus | Expired / Lapsed | 1971-11-08 | 1973-03-27 | 12 | Details |
| US3723113A | Polychromatic electrosolographic imaging process | Expired / Lapsed | 1970-11-09 | 1973-03-27 | 13 | Details |
| US3713861A | Inhibitor device | Expired / Lapsed | 1969-12-04 | 1973-01-30 | 0 | Details |
| US3711713A | Electrically controlled thermal imaging system using a chol… | Expired / Lapsed | 1971-08-05 | 1973-01-16 | 2 | Details |
| US3707391A | Imaging process | Expired / Lapsed | 1971-06-04 | 1972-12-26 | 0 | Details |
| US3699555A | Apparatus for rapid action displacement control | Expired / Lapsed | 1970-10-23 | 1972-10-17 | 5 | Details |
| US3697170A | Automatic duplexing apparatus | Expired / Lapsed | 1970-12-23 | 1972-10-10 | 8 | Details |
| US3694073A | Method for duplexing | Expired / Lapsed | 1970-07-20 | 1972-09-26 | 2 | Details |
| US3687515A | Electro-optic liquid crystal system with polyamide resin ad… | Expired / Lapsed | 1971-01-06 | 1972-08-29 | 22 | Details |
| US3680950A | Grandjean state liquid crystalline imaging system | Expired / Lapsed | 1971-03-15 | 1972-08-01 | 27 | Details |
| US3669447A | Sheet propelling apparatus | Expired / Lapsed | 1970-09-09 | 1972-06-13 | 9 | Details |
| US3666947A | Liquid crystal imaging system having an undisturbed image o… | Expired / Lapsed | 1971-01-06 | 1972-05-30 | 24 | Details |
| US3660086A | Electrophotographic plate and process employing inorganic p… | Expired / Lapsed | 1970-01-02 | 1972-05-02 | 13 | Details |
| US3652156A | Linear-to-drum optical scan converter system | Expired / Lapsed | 1970-01-13 | 1972-03-28 | 4 | Details |
| US3650617A | Switching detector | Expired / Lapsed | 1971-02-01 | 1972-03-21 | 6 | Details |
| US3650616A | Mispuff detector | Expired / Lapsed | 1971-02-01 | 1972-03-21 | 9 | Details |
| US3645615A | Copying apparatus | Expired / Lapsed | 1969-07-03 | 1972-02-29 | 11 | Details |
| US3643242A | Transducer displacement control in movable head-type storag… | Expired / Lapsed | 1970-07-09 | 1972-02-15 | 5 | Details |
| US3642364A | Transfer apparatus | Expired / Lapsed | 1969-11-14 | 1972-02-15 | 18 | Details |
| US3640707A | Imaging system | Expired / Lapsed | 1969-12-11 | 1972-02-08 | 0 | Details |
| US3630607A | Set separation copier system | Expired / Lapsed | 1970-09-09 | 1971-12-28 | 9 | Details |
| US3612758A | Color display device | Expired / Lapsed | 1969-10-03 | 1971-10-12 | 19 | Details |
| US3603680A | Ultrasonic paper detection | Expired / Lapsed | 1969-12-24 | 1971-09-07 | 6 | Details |
| US3603935A | Memory port priority access system with inhibition of low p… | Expired / Lapsed | 1969-05-12 | 1971-09-07 | 4 | Details |
| US3594759A | Graphical data processor | Expired / Lapsed | 1968-04-29 | 1971-07-20 | 18 | Details |
| US3593151A | Detector for receiver printer startup | Expired / Lapsed | 1968-08-12 | 1971-07-13 | 8 | Details |
| US3592166A | Apparatus for developing electrostatic images | Expired / Lapsed | 1968-05-28 | 1971-07-13 | 4 | Details |
| US3587083A | Character generation and display system | Expired / Lapsed | 1967-09-28 | 1971-06-22 | 8 | Details |
| US3582285A | Chemical package | Expired / Lapsed | 1970-03-19 | 1971-06-01 | 0 | Details |
| US3565978A | Replication of surface deformation images | Expired / Lapsed | 1967-09-11 | 1971-02-23 | 0 | Details |
| US3561846A | Radiation sensitive scanner for documents | Expired / Lapsed | 1969-01-31 | 1971-02-09 | 0 | Details |
| US3556512A | Document feed apparatus | Expired / Lapsed | 1968-12-04 | 1971-01-19 | 17 | Details |
| US3556783A | Color manifold imaging process | Expired / Lapsed | 1966-04-01 | 1971-01-19 | 0 | Details |
| US3545934A | Chemical package | Expired / Lapsed | 1968-10-03 | 1970-12-08 | 0 | Details |
| US3536398A | Reproduction apparatus | Expired / Lapsed | 1968-08-12 | 1970-10-27 | 0 | Details |
| US3526338A | Method and controller for dispensing electroscopic material | Expired / Lapsed | 1968-01-02 | 1970-09-01 | 0 | Details |
| US3526480A | Automated chemical analyzer | Expired / Lapsed | 1966-12-15 | 1970-09-01 | 0 | Details |
| US3526533A | Coated carrier particles | Expired / Lapsed | 1966-08-10 | 1970-09-01 | 0 | Details |
| US3521950A | Xerographic reproducing apparatus | Expired / Lapsed | 1967-04-21 | 1970-07-28 | 0 | Details |
| US3520659A | Method and apparatus for use in determining prothrombin tim… | Expired / Lapsed | 1967-10-20 | 1970-07-14 | 0 | Details |
| US3512968A | Method of proofing and screening color separations using th… | Expired / Lapsed | 1965-07-01 | 1970-05-19 | 0 | Details |
| US3512173A | Alphanumeric ink droplet recorder | Expired / Lapsed | 1967-12-28 | 1970-05-12 | 0 | Details |
| US3510210A | Computer process character animation | Expired / Lapsed | 1967-12-15 | 1970-05-05 | 0 | Details |
| US3510419A | Photoelectrophoretic imaging method | Expired / Lapsed | 1967-07-13 | 1970-05-05 | 0 | Details |
| US3508879A | Aliquotting device | Expired / Lapsed | 1966-12-15 | 1970-04-28 | 0 | Details |
| US3506259A | Electrostatic sheet detacking apparatus | Expired / Lapsed | 1967-10-12 | 1970-04-14 | 0 | Details |
| US3502803A | Facsimile line skipping apparatus | Expired / Lapsed | 1967-05-12 | 1970-03-24 | 0 | Details |
| US3502806A | Modified run length data reduction system | Expired / Lapsed | 1966-08-01 | 1970-03-24 | 0 | Details |
| US3501294A | Method of treating the surface of a xerographic plate with … | Expired / Lapsed | 1966-11-14 | 1970-03-17 | 0 | Details |
| US3500236A | Laser stabilizing system | Expired / Lapsed | 1966-10-28 | 1970-03-10 | 0 | Details |
| US3498592A | Heat fixing apparatus for fusible material | Expired / Lapsed | 1968-05-24 | 1970-03-03 | 0 | Details |
| US3499159A | Polychromatic laser aerosol sizing and ranging (plasar) tec… | Expired / Lapsed | 1967-01-23 | 1970-03-03 | 0 | Details |
| US3497207A | Sorting apparatus for documents | Expired / Lapsed | 1968-01-24 | 1970-02-24 | 0 | Details |
| US3496536A | Data link test apparatus | Expired / Lapsed | 1966-05-02 | 1970-02-17 | 0 | Details |
| US3491199A | Facsimile multiplex system | Expired / Lapsed | 1967-05-12 | 1970-01-20 | 0 | Details |
| US3485546A | Field flattener scanning means | Expired / Lapsed | 1967-02-02 | 1969-12-23 | 0 | Details |
| US3477822A | Chemical package | Expired / Lapsed | 1967-12-26 | 1969-11-11 | 0 | Details |
| US3474442A | Format generator circuit | Expired / Lapsed | 1966-10-03 | 1969-10-21 | 2 | Details |
| US3472958A | Facsimile system | Expired / Lapsed | 1966-08-01 | 1969-10-14 | 0 | Details |
| US3472953A | Graphic communication system for transmitting reduced redun… | Expired / Lapsed | 1966-03-17 | 1969-10-14 | 0 | Details |
| US3471638A | Elimination of control signal degradation in landline facsi… | Expired / Lapsed | 1966-05-26 | 1969-10-07 | 0 | Details |
| US3454335A | Scanning system | Expired / Lapsed | 1966-12-30 | 1969-07-08 | 0 | Details |
| US3449548A | Fusing device | Expired / Lapsed | 1966-12-30 | 1969-06-10 | 0 | Details |
| US3445598A | Facsimile apparatus operable over telephone lines with acce… | Expired / Lapsed | 1965-07-14 | 1969-05-20 | 0 | Details |
| US3436474A | Facsimile optional double skipping | Expired / Lapsed | 1965-10-01 | 1969-04-01 | 0 | Details |
| US3434832A | Xerographic plate comprising a protective coating of a resi… | Expired / Lapsed | 1964-10-30 | 1969-03-25 | 0 | Details |
| US3430606A | Electroscopic particle sensor | Expired / Lapsed | 1968-01-02 | 1969-03-04 | 0 | Details |
| US3428744A | Facsimile line skipping system | Expired / Lapsed | 1965-07-14 | 1969-02-18 | 0 | Details |
| US3427242A | Apparatus for continuous photoelectrophoretic imaging | Expired / Lapsed | 1966-04-18 | 1969-02-11 | 2 | Details |
| US3424525A | Microfilm copier attachment | Expired / Lapsed | 1966-05-20 | 1969-01-28 | 2 | Details |
| US3422737A | Variable font character generator | Expired / Lapsed | 1965-12-27 | 1969-01-21 | 2 | Details |
| US3413412A | Pulse width discriminator circuit for eliminating noise pul… | Expired / Lapsed | 1964-12-30 | 1968-11-26 | 0 | Details |
| US3397982A | Xerographic plate with an inorganic glass binder having an … | Expired / Lapsed | 1964-12-21 | 1968-08-20 | 0 | Details |
| US3396965A | Sensor gauge | Expired / Lapsed | 1966-10-11 | 1968-08-13 | 0 | Details |
| US3395913A | Sheet material distribution system | Expired / Lapsed | 1966-10-11 | 1968-08-06 | 0 | Details |
| US3384566A | Method of photoelectrophoretic imaging | Expired / Lapsed | 1967-07-21 | 1968-05-21 | 0 | Details |
| US3382487A | Dataphone driven remote display system | Expired / Lapsed | 1965-12-27 | 1968-05-07 | 2 | Details |
| US3380733A | Sheet-stripping apparatus | Expired / Lapsed | 1965-11-01 | 1968-04-30 | 0 | Details |
| US3376852A | Dielectric belt developing | Expired / Lapsed | 1966-12-27 | 1968-04-09 | 0 | Details |
| US3369918A | Development of latent electrostatic images with crested wav… | Expired / Lapsed | 1966-07-13 | 1968-02-20 | 1 | Details |
| US3360652A | Fail safe photoelectric sheet sensing machine control circu… | Expired / Lapsed | 1964-10-14 | 1967-12-26 | 2 | Details |
| US3355289A | Cyclical xerographic process utilizing a selenium-tellurium… | Expired / Lapsed | 1962-05-02 | 1967-11-28 | 2 | Details |
| US3348522A | Automatic toner control system | Expired / Lapsed | 1965-04-07 | 1967-10-24 | 2 | Details |
| US3340401A | Motionless data input key | Expired / Lapsed | 1963-12-26 | 1967-09-05 | 2 | Details |
| US3322893A | Background scanning system for facsimile communication | Expired / Lapsed | 1963-12-11 | 1967-05-30 | 2 | Details |
| US3312548A | Xerographic plates | Expired / Lapsed | 1965-12-27 | 1967-04-04 | 2 | Details |
| US3312547A | Xerographic plate and processes of making and using same | Expired / Lapsed | 1964-07-02 | 1967-04-04 | 2 | Details |
| US3308475A | Electroviscously controlled recorder | Expired / Lapsed | 1964-12-21 | 1967-03-07 | 2 | Details |
| US3288602A | Xerographic plate and method | Expired / Lapsed | 1962-04-04 | 1966-11-29 | 4 | Details |
| US3264407A | Facsimile scanning apparatus | Expired / Lapsed | 1963-06-24 | 1966-08-02 | 2 | Details |
| US3251685A | Method of controlling contrast in a xerographic reproductio… | Expired / Lapsed | 1959-10-19 | 1966-05-17 | 2 | Details |
| US3244083A | Xerographic device | Expired / Lapsed | 1962-10-23 | 1966-04-05 | 2 | Details |
| US3243293A | Plate for electrostatic electro-photography | Expired / Lapsed | 1965-03-26 | 1966-03-29 | 2 | Details |
| US3219993A | Image formation and display utilizing a thermotropically co… | Expired / Lapsed | 1962-10-24 | 1965-11-23 | 2 | Details |
| US3220012A | Simultaneous recording and display system | Expired / Lapsed | 1962-05-03 | 1965-11-23 | 2 | Details |
| US3217209A | Printed circuits with resistive and capacitive elements | Expired / Lapsed | 1960-05-12 | 1965-11-09 | 2 | Details |
| US3190199A | Xerographic copying apparatus | Expired / Lapsed | 1963-01-02 | 1965-06-22 | 2 | Details |
| US3155022A | Buffer for electronic display readout | Expired / Lapsed | 1963-05-31 | 1964-11-03 | 1 | Details |
| US3149356A | Xerographic plate cleaning apparatus | Expired / Lapsed | 1962-11-01 | 1964-09-22 | 2 | Details |
| US3140174A | Process for overcoating a xerographic plate | Expired / Lapsed | 1959-06-23 | 1964-07-07 | 2 | Details |
| US3132206A | High speed printing apparatus | Expired / Lapsed | 1960-05-06 | 1964-05-05 | 2 | Details |
| US3130411A | Electronic recorder | Expired / Lapsed | 1960-08-29 | 1964-04-21 | 1 | Details |
| US3129115A | Xerographic developing apparatus | Expired / Lapsed | 1961-04-17 | 1964-04-14 | 2 | Details |
| US3121007A | Photo-active member for xerography | Expired / Lapsed | 1958-02-12 | 1964-02-11 | 2 | Details |
| US3117891A | Xerographic apparatus | Expired / Lapsed | 1960-09-26 | 1964-01-14 | 2 | Details |
| US3091160A | Xerographic plate feeding and supporting apparatus | Expired / Lapsed | 1958-12-24 | 1963-05-28 | 2 | Details |
| US3077386A | Process for treating selenium | Expired / Lapsed | 1958-01-02 | 1963-02-12 | 2 | Details |
| US3076968A | Electrostatically recording plurality of signal bits simult… | Expired / Lapsed | 1957-09-12 | 1963-02-05 | 2 | Details |
| US3062095A | Projector optical scanning system | Expired / Lapsed | 1959-07-02 | 1962-11-06 | 0 | Details |
| US3061911A | Method of making printed circuits | Expired / Lapsed | 1958-01-31 | 1962-11-06 | 0 | Details |
| US3050580A | Electrostatic techniques | Expired / Lapsed | 1957-02-04 | 1962-08-21 | 0 | Details |
| US3045644A | Two-color electrostatic printing apparatus | Expired / Lapsed | 1957-06-06 | 1962-07-24 | 0 | Details |
| US3043685A | Xerographic and magnetic image recording and reproducing | Expired / Lapsed | 1957-07-18 | 1962-07-10 | 2 | Details |
| US3041166A | Xerographic plate and method | Expired / Lapsed | 1958-02-12 | 1962-06-26 | 2 | Details |
| US3010842A | Development of electrostatic images | Expired / Lapsed | 1955-08-29 | 1961-11-28 | 0 | Details |
| US3003869A | Xerographic plate of high quantum efficiency | Expired / Lapsed | 1957-02-11 | 1961-10-10 | 6 | Details |
| US3001849A | Apparatus for electrostatic recording | Expired / Lapsed | 1958-07-15 | 1961-09-26 | 0 | Details |
| US2970906A | Xerographic plate and a process of copy-making | Expired / Lapsed | 1955-08-05 | 1961-02-07 | 2 | Details |
| US2965069A | Xerographic developing apparatus | Expired / Lapsed | 1958-04-01 | 1960-12-20 | 0 | Details |
| US2965754A | Double screen corona device | Expired / Lapsed | 1958-03-26 | 1960-12-20 | 0 | Details |
| US2962376A | Xerographic member | Expired / Lapsed | 1958-05-14 | 1960-11-29 | 2 | Details |
| US2954291A | Method for preparing a spirit duplicating master | Expired / Lapsed | 1957-01-04 | 1960-09-27 | 0 | Details |
| US2937943A | Transfer of electrostatic charge pattern | Expired / Lapsed | 1957-01-09 | 1960-05-24 | 2 | Details |
| US2919967A | High-speed electrostatic alphanumerical printer | Expired / Lapsed | 1957-06-06 | 1960-01-05 | 0 | Details |
| US2914221A | Aerosol bomb development | Expired / Lapsed | 1955-08-16 | 1959-11-24 | 1 | Details |
| US2911944A | Xerographic development apparatus | Expired / Lapsed | 1954-09-16 | 1959-11-10 | 0 | Details |
| US2901348A | Radiation sensitive photoconductive member | Expired / Lapsed | 1953-03-17 | 1959-08-25 | 2 | Details |
| US2885556A | Simultaneous charging device and method | Expired / Lapsed | 1955-08-01 | 1959-05-05 | 0 | Details |
| US2879397A | Image development | Expired / Lapsed | 1955-12-19 | 1959-03-24 | 2 | Details |
| US2874064A | Xerographic cleaner | Expired / Lapsed | 1955-05-16 | 1959-02-17 | 0 | Details |
| US2860048A | Xerographic plate | Expired / Lapsed | 1955-06-13 | 1958-11-11 | 2 | Details |
| US2833648A | Transfer of electrostatic charge pattern | Expired / Lapsed | 1953-07-16 | 1958-05-06 | 2 | Details |
| US2833930A | Electrostatic charging method and apparatus | Expired / Lapsed | 1953-07-16 | 1958-05-06 | 0 | Details |
| US2831409A | Xerographic camera | Expired / Lapsed | 1955-07-18 | 1958-04-22 | 0 | Details |
| US2825814A | Xerographic image formation | Expired / Lapsed | 1954-06-04 | 1958-03-04 | 0 | Details |
| US2824545A | Apparatus for developing xerographic images | Expired / Lapsed | 1955-02-01 | 1958-02-25 | 0 | Details |
| US2824813A | Method for developing electrostatic latent images | Expired / Lapsed | 1952-05-12 | 1958-02-25 | 0 | Details |
| US2822172A | Sheet handling machine | Expired / Lapsed | 1955-01-06 | 1958-02-04 | 0 | Details |
| US2817765A | Xerographic method | Expired / Lapsed | 1956-01-03 | 1957-12-24 | 0 | Details |
| US2811135A | Powder charging device | Expired / Lapsed | 1954-12-29 | 1957-10-29 | 0 | Details |
| US2803541A | Xerographic plate | Expired / Lapsed | 1953-05-29 | 1957-08-20 | 2 | Details |
| US2792971A | Particle aerosol generation | Expired / Lapsed | 1955-03-03 | 1957-05-21 | 0 | Details |
| US2784109A | Method for developing electrostatic images | Expired / Lapsed | 1950-09-18 | 1957-03-05 | 2 | Details |
| US2777957A | Corona discharge device | Expired / Lapsed | 1950-04-06 | 1957-01-15 | 0 | Details |
| US2774921A | Apparatus for electrostatically charging insulating image s… | Expired / Lapsed | 1953-04-23 | 1956-12-18 | 0 | Details |
| US2756676A | Method for the production of electrophotographic prints | Expired / Lapsed | 1953-05-04 | 1956-07-31 | 2 | Details |
| US2741959A | Electrophotography | Expired / Lapsed | 1953-04-10 | 1956-04-17 | 2 | Details |
| US2711481A | Xeroradiography method and device | Expired / Lapsed | 1954-06-09 | 1955-06-21 | 2 | Details |
| US2701765A | Xerographic fusing apparatus | Expired / Lapsed | 1951-06-18 | 1955-02-08 | 2 | Details |
| US2663636A | Electrophotographic plate and method of producing same | Expired / Lapsed | 1949-05-25 | 1953-12-22 | 2 | Details |
| US2662832A | Process of producing an electrophotographic plate | Expired / Lapsed | 1950-04-08 | 1953-12-15 | 2 | Details |
| US2661289A | Adhesive transfer and fixing apparatus | Expired / Lapsed | 1952-01-21 | 1953-12-01 | 2 | Details |
| US2619418A | Xerographic plate holder | Expired / Lapsed | 1950-12-30 | 1952-11-25 | 2 | Details |
| US2550738A | Apparatus for applying powder to electrophotographic plates | Expired / Lapsed | 1950-01-06 | 1951-05-01 | 0 | Details |
| US2484782A | Method of removing electroscopic powder from an electrophot… | Expired / Lapsed | 1948-02-27 | 1949-10-11 | 0 | Details |
| US2265975A | Photo-copy machine | Expired / Lapsed | 1941-03-10 | 1941-12-09 | 0 | Details |
| US2047478A | Paper feeding and cutting mechanism | Expired / Lapsed | 1935-10-28 | 1936-07-14 | 0 | Details |
| US1992492A | Photocopy machine | Expired / Lapsed | 1934-04-03 | 1935-02-26 | 0 | Details |