NCR Voyix Corp
NCR VoyixActive Patents
0
Total Holdings
274
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| DE2708569A1 | SYSTEM FOR THE IDENTITY VERIFICATION OF A PERSON | Expired / Lapsed | 1977-02-28 | — | 0 | Details |
| FR2148045A1 | FR2148045A1 - - Google Patents | Expired / Lapsed | 1972-07-27 | — | 0 | Details |
| GB779005A | Combined computing machine and record card data processing … | Expired / Lapsed | 1955-12-30 | — | 0 | Details |
| GB583266A | Improvements in or relating to electric impulse producing a… | Expired / Lapsed | 1944-05-19 | — | 0 | Details |
| GB540600A | Improvements in or relating to record media for use in acco… | Expired / Lapsed | 1940-02-15 | — | 0 | Details |
| US6279039B1 | Resource management method and apparatus for maximizing mul… | Expired / Lapsed | 1996-04-03 | 2001-08-21 | 17 | Details |
| US6253203B1 | Privacy-enhanced database | Expired / Lapsed | 1998-10-02 | 2001-06-26 | 24 | Details |
| US6208344B1 | System and process for manipulating and viewing hierarchica… | Expired / Lapsed | 1998-07-29 | 2001-03-27 | 16 | Details |
| US6184926B1 | System and method for detecting a human face in uncontrolle… | Expired / Lapsed | 1997-05-21 | 2001-02-06 | 10 | Details |
| US5606341A | Passive CPU cooling and LCD heating for a laptop computer | Expired / Lapsed | 1995-10-02 | 1997-02-25 | 24 | Details |
| US5587560A | Portable handwritten data capture device and method of using | Expired / Lapsed | 1995-04-10 | 1996-12-24 | 15 | Details |
| US5090829A | Method and apparatus for monitoring print head carriage | Expired / Lapsed | 1991-01-17 | 1992-02-25 | 30 | Details |
| US4898487A | Print head carriage for matrix printer | Expired / Lapsed | 1988-12-08 | 1990-02-06 | 6 | Details |
| US4847880A | Multipoint modem system having fast synchronization | Expired / Lapsed | 1988-08-18 | 1989-07-11 | 8 | Details |
| US4835673A | Method and apparatus for sharing resources among multiple p… | Expired / Lapsed | 1987-04-27 | 1989-05-30 | 26 | Details |
| US4796007A | Micro-motion keyboard | Expired / Lapsed | 1987-01-05 | 1989-01-03 | 8 | Details |
| USD298325S | Combined card reader and data entry terminal or similar art… | Expired / Lapsed | 1985-10-18 | 1988-11-01 | 1 | Details |
| US4752910A | Method and apparatus for continuous after-imaging | Expired / Lapsed | 1987-06-22 | 1988-06-21 | 4 | Details |
| US4736332A | Portable personal computing system | Expired / Lapsed | 1985-04-26 | 1988-04-05 | 9 | Details |
| US4708312A | Extensible height-adjustable swivel arm for supporting a di… | Expired / Lapsed | 1986-10-10 | 1987-11-24 | 8 | Details |
| US4645153A | Tilt and swivel support | Expired / Lapsed | 1985-05-23 | 1987-02-24 | 17 | Details |
| US4631701A | Dynamic random access memory refresh control system | Expired / Lapsed | 1983-10-31 | 1986-12-23 | 4 | Details |
| US4593384A | Security device for the secure storage of sensitive data | Expired / Lapsed | 1984-12-21 | 1986-06-03 | 23 | Details |
| US4514728A | Store group bus allocation system | Expired / Lapsed | 1982-12-27 | 1985-04-30 | 2 | Details |
| US4470111A | Priority interrupt controller | Expired / Lapsed | 1981-11-12 | 1984-09-04 | 16 | Details |
| US4419736A | Teleprinter terminal | Expired / Lapsed | 1980-05-12 | 1983-12-06 | 15 | Details |
| US4412285A | Multiprocessor intercommunication system and method | Expired / Lapsed | 1981-04-01 | 1983-10-25 | 178 | Details |
| US4373965A | Suppression of parasitic sidewall transistors in locos stru… | Expired / Lapsed | 1980-12-22 | 1983-02-15 | 9 | Details |
| US4355398A | Real time clock recovery circuit | Expired / Lapsed | 1980-12-17 | 1982-10-19 | 16 | Details |
| US4315313A | Diagnostic circuitry in a data processor | Expired / Lapsed | 1979-12-27 | 1982-02-09 | 8 | Details |
| USD261007S | Bar code symbols | Expired / Lapsed | 1979-05-14 | 1981-09-29 | 1 | Details |
| US4264808A | Method and apparatus for electronic image processing of doc… | Expired / Lapsed | 1978-10-06 | 1981-04-28 | 33 | Details |
| US4254469A | Method and apparatus for offset error correction | Expired / Lapsed | 1979-03-01 | 1981-03-03 | 26 | Details |
| US4253183A | Method and apparatus for diagnosing faults in a processor h… | Expired / Lapsed | 1979-05-02 | 1981-02-24 | 11 | Details |
| US4249247A | Refresh system for dynamic RAM memory | Expired / Lapsed | 1979-01-08 | 1981-02-03 | 16 | Details |
| US4240064A | Power limiting circuit for bar code reader | Expired / Lapsed | 1978-09-11 | 1980-12-16 | 17 | Details |
| US4205373A | System and method for accessing memory connected to differe… | Expired / Lapsed | 1978-05-22 | 1980-05-27 | 20 | Details |
| US4194113A | Method and apparatus for isolating faults in a logic circuit | Expired / Lapsed | 1978-04-13 | 1980-03-18 | 70 | Details |
| US4176780A | Method and apparatus for testing printed circuit boards | Expired / Lapsed | 1977-12-06 | 1979-12-04 | 41 | Details |
| US4174805A | Method and apparatus for transmitting data to a predefined … | Expired / Lapsed | 1978-04-13 | 1979-11-20 | 36 | Details |
| US4168523A | Data processor utilizing a two level microaddressing contro… | Expired / Lapsed | 1977-12-06 | 1979-09-18 | 9 | Details |
| US4168469A | Digital data communication adapter | Expired / Lapsed | 1977-10-04 | 1979-09-18 | 31 | Details |
| US4159541A | Minimum pin memory device | Expired / Lapsed | 1977-07-01 | 1979-06-26 | 31 | Details |
| US4148558A | Optical transmission line by-pass relay | Expired / Lapsed | 1977-10-17 | 1979-04-10 | 7 | Details |
| US4149242A | Data interface apparatus for multiple sequential processors | Expired / Lapsed | 1977-05-06 | 1979-04-10 | 27 | Details |
| US4068213A | Checkout system | Expired / Lapsed | 1976-12-23 | 1978-01-10 | 13 | Details |
| US4051408A | Circular plasma charge display device | Expired / Lapsed | 1976-01-13 | 1977-09-27 | 13 | Details |
| US4045018A | Document deskewing apparatus | Expired / Lapsed | 1976-09-16 | 1977-08-30 | 17 | Details |
| US4038644A | Destination selection apparatus for a bus oriented computer… | Expired / Lapsed | 1975-11-19 | 1977-07-26 | 12 | Details |
| US4021616A | Interpolating rate multiplier | Expired / Lapsed | 1976-01-08 | 1977-05-03 | 23 | Details |
| US4004089A | Programmable cryptic device for enciphering and deciphering… | Expired / Lapsed | 1975-02-28 | 1977-01-18 | 8 | Details |
| US3909444A | Microcapsule | Expired / Lapsed | 1971-08-05 | 1975-09-30 | 12 | Details |
| US3866175A | Data communication system between a central computer and a … | Expired / Lapsed | 1974-04-24 | 1975-02-11 | 31 | Details |
| US3825640A | Process for manufacturing a porous,solid,article | Expired / Lapsed | 1972-04-27 | 1974-07-23 | 0 | Details |
| US3810433A | Printed circuit card guide | Expired / Lapsed | 1972-08-09 | 1974-05-14 | 3 | Details |
| US3787327A | Process for manufacturing minute capsules having polynitril… | Expired / Lapsed | 1972-02-22 | 1974-01-22 | 1 | Details |
| US3787210A | Laser recording technique using combustible blow-off | Expired / Lapsed | 1971-09-30 | 1974-01-22 | 5 | Details |
| US3786495A | Stored charge transducer | Expired / Lapsed | 1972-05-17 | 1974-01-15 | 19 | Details |
| US3781600A | Plasma charge transfer device | Expired / Lapsed | 1972-05-22 | 1973-12-25 | 23 | Details |
| US3774177A | Nonvolatile random access memory cell using an alterable th… | Expired / Lapsed | 1972-10-16 | 1973-11-20 | 14 | Details |
| US3774205A | Merchandise mark sensing system | Expired / Lapsed | 1971-08-02 | 1973-11-20 | 9 | Details |
| US3766364A | Coded data sensing system | Expired / Lapsed | 1972-02-11 | 1973-10-16 | 15 | Details |
| US3733471A | Recirculating counter | Expired / Lapsed | 1971-12-07 | 1973-05-15 | 9 | Details |
| US3732172A | Process for making minute capsules and prefabricated system… | Expired / Lapsed | 1968-02-28 | 1973-05-08 | 0 | Details |
| US3713107A | Firmware sort processor system | Expired / Lapsed | 1972-04-03 | 1973-01-23 | 20 | Details |
| US3704467A | Reversible record and storage medium | Expired / Lapsed | 1970-09-14 | 1972-11-28 | 9 | Details |
| US3702988A | Digital processor | Expired / Lapsed | 1970-09-14 | 1972-11-14 | 36 | Details |
| US3700306A | Electro-optic shutter having a thin glass or silicon oxide … | Expired / Lapsed | 1971-09-22 | 1972-10-24 | 11 | Details |
| US3697437A | Encapsulation process by complex coacervation using inorgan… | Expired / Lapsed | 1970-05-27 | 1972-10-10 | 0 | Details |
| US3691538A | Serial read-out memory system | Expired / Lapsed | 1971-06-01 | 1972-09-12 | 12 | Details |
| US3686637A | Retail terminal | Expired / Lapsed | 1970-09-14 | 1972-08-22 | 59 | Details |
| US3680061A | Integrated circuit bipolar random access memory system with… | Expired / Lapsed | 1970-04-30 | 1972-07-25 | 4 | Details |
| US3675239A | Unlimited roll keyboard circuit | Expired / Lapsed | 1970-09-14 | 1972-07-04 | 14 | Details |
| US3668661A | Character coding, memory, and display system | Expired / Lapsed | 1969-06-25 | 1972-06-06 | 10 | Details |
| US3647535A | Method of controllably oxidizing a silicon wafer | Expired / Lapsed | 1969-10-27 | 1972-03-07 | 6 | Details |
| US3637291A | Display device with inherent memory | Expired / Lapsed | 1970-02-11 | 1972-01-25 | 7 | Details |
| US3637993A | Transition code recognition system | Expired / Lapsed | 1969-06-30 | 1972-01-25 | 49 | Details |
| US3608992A | Multiplex holography with tresnel diffraction pattern coded… | Expired / Lapsed | 1970-06-18 | 1971-09-28 | 10 | Details |
| US3605092A | Magnetic ink character recognition system | Expired / Lapsed | 1970-01-19 | 1971-09-14 | 17 | Details |
| US3600060A | Display device containing minute droplets of cholesteric li… | Expired / Lapsed | 1968-02-23 | 1971-08-17 | 20 | Details |
| US3598956A | Ion migration barrier | Expired / Lapsed | 1969-08-11 | 1971-08-10 | 15 | Details |
| US3594326A | Method of making microscopic capsules | Expired / Lapsed | 1969-02-14 | 1971-07-20 | 0 | Details |
| US3588818A | Character recognition system employing continuity detection… | Expired / Lapsed | 1967-07-07 | 1971-06-28 | 0 | Details |
| US3585998A | Disposable diaper with rupturable capsules | Expired / Lapsed | 1968-03-29 | 1971-06-22 | 4 | Details |
| US3585381A | Encapsulated cholesteric liquid crystal display device | Expired / Lapsed | 1969-04-14 | 1971-06-15 | 13 | Details |
| US3576758A | Treatment of polypeptide-containing hydrophilic polymeric c… | Expired / Lapsed | 1966-10-17 | 1971-04-27 | 0 | Details |
| US3573740A | Communication multiplexer for online data transmission | Expired / Lapsed | 1968-07-03 | 1971-04-06 | 23 | Details |
| US3551346A | Method of making dual wall capsules | Expired / Lapsed | 1966-11-23 | 1970-12-29 | 0 | Details |
| US3549555A | Encapsulation of lipophilic liquid-in-hydrophilic liquid em… | Expired / Lapsed | 1968-10-08 | 1970-12-22 | 0 | Details |
| US3549825A | Magnetic transducer with planar spiral coil extending into … | Expired / Lapsed | 1967-09-18 | 1970-12-22 | 0 | Details |
| US3539465A | Encapsulation of hydrophilic liquid-in-oil emulsions | Expired / Lapsed | 1968-10-08 | 1970-11-10 | 0 | Details |
| US3522367A | Optical information display system | Expired / Lapsed | 1967-03-10 | 1970-07-28 | 0 | Details |
| US3518406A | Thermal half-select printing matrix | Expired / Lapsed | 1968-11-08 | 1970-06-30 | 0 | Details |
| US3515850A | Thermal printing head with diffused printing elements | Expired / Lapsed | 1967-10-02 | 1970-06-02 | 0 | Details |
| US3514348A | Method for making semiconductor devices | Expired / Lapsed | 1967-05-10 | 1970-05-26 | 0 | Details |
| US3480936A | Magnetic transducer head assembly | Expired / Lapsed | 1966-10-10 | 1969-11-25 | 0 | Details |
| US3475760A | Laser film deformation recording and erasing system | Expired / Lapsed | 1966-10-07 | 1969-10-28 | 0 | Details |
| US3472675A | Pressure-sensitive capsule-containing foraminated sheet mat… | Expired / Lapsed | 1966-12-23 | 1969-10-14 | 0 | Details |
| US3467810A | Thermal printing selection circuitry | Expired / Lapsed | 1967-10-02 | 1969-09-16 | 0 | Details |
| US3466156A | Magnetic record members | Expired / Lapsed | 1966-12-01 | 1969-09-09 | 0 | Details |
| US3465352A | Information processing systems using lasers | Expired / Lapsed | 1966-05-11 | 1969-09-02 | 0 | Details |
| US3455848A | Polyurethane foam-producing compositions comprising microen… | Expired / Lapsed | 1964-05-05 | 1969-07-15 | 2 | Details |
| US3449705A | Photoconductive matrix sheet | Expired / Lapsed | 1966-04-21 | 1969-06-10 | 0 | Details |
| US3448458A | Laser recorder with scanning and display systems | Expired / Lapsed | 1967-06-16 | 1969-06-03 | 0 | Details |
| US3440955A | Multiple paper-feed mechanism and stacker device in high-sp… | Expired / Lapsed | 1966-09-29 | 1969-04-29 | 0 | Details |
| US3436355A | Process for making capsules and method of making premix use… | Expired / Lapsed | 1966-04-18 | 1969-04-01 | 0 | Details |
| US3426328A | Electronic data processing system | Expired / Lapsed | 1965-01-18 | 1969-02-04 | 0 | Details |
| US3400379A | Generalized logic circuitry | Expired / Lapsed | 1966-01-03 | 1968-09-03 | 0 | Details |
| US3394353A | Memory arrangement for electronic data processing system | Expired / Lapsed | 1965-09-13 | 1968-07-23 | 0 | Details |
| US3368117A | Voltage distribution circuit arrangements for high-density … | Expired / Lapsed | 1966-06-13 | 1968-02-06 | 0 | Details |
| US3341416A | Encapsulation of aspirin in ethylcellulose and its product | Expired / Lapsed | 1963-12-11 | 1967-09-12 | 2 | Details |
| US3336155A | Process of coating particles with a polymer | Expired / Lapsed | 1964-01-15 | 1967-08-15 | 2 | Details |
| US3336159A | Method for growing single thin film crystals | Expired / Lapsed | 1963-10-07 | 1967-08-15 | 2 | Details |
| US3333166A | Semiconductor circuit complex having low isolation capacita… | Expired / Lapsed | 1964-06-23 | 1967-07-25 | 2 | Details |
| US3323407A | Pattern recognition system utilizing optical device which e… | Expired / Lapsed | 1964-01-07 | 1967-06-06 | 1 | Details |
| US3317433A | Heat rupturable capsules | Expired / Lapsed | 1960-01-27 | 1967-05-02 | 2 | Details |
| US3308439A | On-line system | Expired / Lapsed | 1964-01-02 | 1967-03-07 | 4 | Details |
| US3308273A | Printing control means for accounting machines | Expired / Lapsed | 1963-03-18 | 1967-03-07 | 2 | Details |
| FR1468601A | Process for forming protective coatings for solid and liqui… | Expired / Lapsed | 1959-12-21 | 1967-02-10 | 0 | Details |
| US3265630A | Encapsulating lipophilic material by coacervation | Expired / Lapsed | 1958-12-22 | 1966-08-09 | 2 | Details |
| US3265629A | Coating by phase separation | Expired / Lapsed | 1958-12-22 | 1966-08-09 | 2 | Details |
| US3253125A | Accounting machine recording control means | Expired / Lapsed | 1962-06-22 | 1966-05-24 | 2 | Details |
| US3243776A | Scanning system for registering and reading characters | Expired / Lapsed | 1963-02-08 | 1966-03-29 | 1 | Details |
| US3242317A | Combined electrical and mechanical accounting device includ… | Expired / Lapsed | 1962-09-10 | 1966-03-22 | 4 | Details |
| US3217294A | Character recognition system | Expired / Lapsed | 1961-07-06 | 1965-11-09 | 1 | Details |
| US3211921A | Tunnel diode discrimination circuitry | Expired / Lapsed | 1961-12-08 | 1965-10-12 | 1 | Details |
| US3205175A | Method of making ethyl-cellulose-lined liquid-containing mi… | Expired / Lapsed | 1960-03-09 | 1965-09-07 | 2 | Details |
| US3184724A | Random-access information storage device utilizing flexible… | Expired / Lapsed | 1961-07-14 | 1965-05-18 | 2 | Details |
| US3161457A | Thermal printing units | Expired / Lapsed | 1962-11-01 | 1964-12-15 | 2 | Details |
| US3139026A | Thermal printers | Expired / Lapsed | 1963-07-02 | 1964-06-30 | 2 | Details |
| US3134674A | Data display system | Expired / Lapsed | 1960-01-27 | 1964-05-26 | 2 | Details |
| FR1351358A | Process for forming impermeable coatings for particulate ma… | Expired / Lapsed | 1959-12-21 | 1964-02-07 | 0 | Details |
| US3116206A | Encapsulation process and its product | Expired / Lapsed | 1961-12-22 | 1963-12-31 | 2 | Details |
| US3116159A | Process of fabricating magnetic data storage devices | Expired / Lapsed | 1960-05-19 | 1963-12-31 | 2 | Details |
| US3114132A | Electrical decoders | Expired / Lapsed | 1961-09-18 | 1963-12-10 | 2 | Details |
| US3100113A | Check feeding and alining mechanism | Expired / Lapsed | 1960-11-01 | 1963-08-06 | 2 | Details |
| US3089122A | Automatic reading apparatus | Expired / Lapsed | 1958-04-14 | 1963-05-07 | 2 | Details |
| US3087149A | Decimal to binary conversion and storage system | Expired / Lapsed | 1960-04-21 | 1963-04-23 | 2 | Details |
| US3085469A | Optical information-processing apparatus and method | Expired / Lapsed | 1959-10-12 | 1963-04-16 | 2 | Details |
| US3073968A | Peak detector with dual feedback automatic gain adjusting m… | Expired / Lapsed | 1960-03-09 | 1963-01-15 | 2 | Details |
| US3067934A | Clock signal generating means | Expired / Lapsed | 1961-05-15 | 1962-12-11 | 0 | Details |
| US3042305A | Program control apparatus | Expired / Lapsed | 1958-03-10 | 1962-07-03 | 0 | Details |
| US3041585A | Dynamic clock recorder | Expired / Lapsed | 1953-07-14 | 1962-06-26 | 0 | Details |
| US3027546A | Magnetic core driving circuit | Expired / Lapsed | 1956-10-17 | 1962-03-27 | 0 | Details |
| US3020171A | Pressure-sensitive record and transfer sheet material | Expired / Lapsed | 1960-08-26 | 1962-02-06 | 2 | Details |
| US3011152A | Character reading apparatus | Expired / Lapsed | 1957-12-10 | 1961-11-28 | 0 | Details |
| US3011165A | Code conversion system | Expired / Lapsed | 1957-11-01 | 1961-11-28 | 0 | Details |
| US2998530A | Switching device | Expired / Lapsed | 1958-01-23 | 1961-08-29 | 0 | Details |
| US2994428A | Sorting apparatus | Expired / Lapsed | 1958-04-28 | 1961-08-01 | 0 | Details |
| US2991009A | Coded digit adder | Expired / Lapsed | 1957-04-02 | 1961-07-04 | 0 | Details |
| US2988461A | Adhesive tape | Expired / Lapsed | 1958-06-16 | 1961-06-13 | 0 | Details |
| US2980941A | Cleaning sheet | Expired / Lapsed | 1958-12-08 | 1961-04-25 | 2 | Details |
| US2978685A | Tape unit control system | Expired / Lapsed | 1955-02-14 | 1961-04-04 | 0 | Details |
| US2971916A | Microscopic capsules containing magnetizable material | Expired / Lapsed | 1957-01-30 | 1961-02-14 | 0 | Details |
| US2964238A | Card readout system | Expired / Lapsed | 1958-09-29 | 1960-12-13 | 0 | Details |
| US2963293A | Control circuit | Expired / Lapsed | 1958-11-07 | 1960-12-06 | 0 | Details |
| US2954166A | General purpose computer | Expired / Lapsed | 1952-12-10 | 1960-09-27 | 0 | Details |
| US2953454A | Phototropic data storage capsules and base coated therewith | Expired / Lapsed | 1957-04-23 | 1960-09-20 | 2 | Details |
| US2952407A | Parallel adder circuit | Expired / Lapsed | 1953-06-26 | 1960-09-13 | 0 | Details |
| US2947976A | Computer data merging system | Expired / Lapsed | 1955-05-19 | 1960-08-02 | 0 | Details |
| US2945217A | Magnetic data storage devices | Expired / Lapsed | 1958-11-07 | 1960-07-12 | 0 | Details |
| US2916624A | Punched tape reader | Expired / Lapsed | 1957-10-11 | 1959-12-08 | 0 | Details |
| US2907682A | Adhesive tape containing pressurerupturable capsules | Expired / Lapsed | 1958-05-28 | 1959-10-06 | 2 | Details |
| US2902214A | Computer input-output system | Expired / Lapsed | 1954-08-17 | 1959-09-01 | 0 | Details |
| US2900533A | Multiple delay line | Expired / Lapsed | 1957-07-02 | 1959-08-18 | 0 | Details |
| US2900132A | Data retrieval system | Expired / Lapsed | 1956-01-11 | 1959-08-18 | 0 | Details |
| US2900625A | Head positioning device | Expired / Lapsed | 1955-06-24 | 1959-08-18 | 0 | Details |
| US2885602A | Modular circuit fabrication | Expired / Lapsed | 1955-04-04 | 1959-05-05 | 0 | Details |
| US2878872A | Data recording apparatus | Expired / Lapsed | 1955-02-16 | 1959-03-24 | 0 | Details |
| US2877012A | Tape stopping mechanism | Expired / Lapsed | 1958-02-07 | 1959-03-10 | 0 | Details |
| US2864609A | Tape-feeding means for record tape | Expired / Lapsed | 1954-09-30 | 1958-12-16 | 0 | Details |
| US2853696A | Computer editing and printing system | Expired / Lapsed | 1955-07-18 | 1958-09-23 | 0 | Details |
| US2828341A | N-halophenyl derivatives of leucauramine | Expired / Lapsed | 1955-11-01 | 1958-03-25 | 2 | Details |
| US2822480A | Bistable state circuit | Expired / Lapsed | 1950-07-25 | 1958-02-04 | 0 | Details |
| US2806151A | Phase inverter circuit | Expired / Lapsed | 1954-12-14 | 1957-09-10 | 0 | Details |
| US2800458A | Oil-containing microscopic capsules and method of making th… | Expired / Lapsed | 1953-06-30 | 1957-07-23 | 2 | Details |
| US2800457A | Oil-containing microscopic capsules and method of making th… | Expired / Lapsed | 1953-06-30 | 1957-07-23 | 2 | Details |
| US2760654A | Sorting machine for paper forms | Expired / Lapsed | 1951-04-06 | 1956-08-28 | 0 | Details |
| US2751584A | Visual readout device | Expired / Lapsed | 1953-11-10 | 1956-06-19 | 0 | Details |
| US2740110A | Magnetic switching devices | Expired / Lapsed | 1953-05-18 | 1956-03-27 | 0 | Details |
| US2730456A | Manifold record material | Expired / Lapsed | 1953-06-30 | 1956-01-10 | 2 | Details |
| US2730457A | Pressure responsive record materials | Expired / Lapsed | 1953-06-30 | 1956-01-10 | 2 | Details |
| US2728491A | Liquid dispensers | Expired / Lapsed | 1952-03-22 | 1955-12-27 | 2 | Details |
| US2723354A | Ferro-resonant shift register | Expired / Lapsed | 1954-09-28 | 1955-11-08 | 0 | Details |
| US2717334A | Electronic counters | Expired / Lapsed | 1953-04-21 | 1955-09-06 | 0 | Details |
| US2708498A | Sensing device for record material | Expired / Lapsed | 1948-11-03 | 1955-05-17 | 0 | Details |
| US2706270A | Digital control system | Expired / Lapsed | 1950-09-23 | 1955-04-12 | 0 | Details |
| US2696782A | Dampener for printing hammers | Expired / Lapsed | 1951-01-12 | 1954-12-14 | 0 | Details |
| US2694973A | Silk screen machine | Expired / Lapsed | 1952-07-26 | 1954-11-23 | 0 | Details |
| US2682995A | Printer and indicator unit | Expired / Lapsed | 1951-09-29 | 1954-07-06 | 0 | Details |
| US2671171A | Electronic accumulator | Expired / Lapsed | 1951-03-14 | 1954-03-02 | 0 | Details |
| US2654539A | Ordinally-selective key-responsive cycle initiating mechani… | Expired / Lapsed | 1948-08-30 | 1953-10-06 | 0 | Details |
| US2650024A | Record member | Expired / Lapsed | 1951-11-07 | 1953-08-25 | 0 | Details |
| US2648835A | Electronic impulse generator | Expired / Lapsed | 1951-03-14 | 1953-08-11 | 0 | Details |
| US2647997A | Electronic counting device | Expired / Lapsed | 1951-11-14 | 1953-08-04 | 0 | Details |
| US2644111A | Electronic counter | Expired / Lapsed | 1951-12-04 | 1953-06-30 | 0 | Details |
| US2640144A | Indicator illuminating device | Expired / Lapsed | 1950-02-01 | 1953-05-26 | 0 | Details |
| US2626752A | Carry device for electronic calculators | Expired / Lapsed | 1949-11-23 | 1953-01-27 | 0 | Details |
| US2618866A | Educational device | Expired / Lapsed | 1951-08-31 | 1952-11-25 | 0 | Details |
| US2617870A | Indicating apparatus | Expired / Lapsed | 1950-04-22 | 1952-11-11 | 0 | Details |
| US2616366A | Printer hammer dampener | Expired / Lapsed | 1949-11-18 | 1952-11-04 | 0 | Details |
| US2595045A | Calculating machine | Expired / Lapsed | 1940-03-20 | 1952-04-29 | 0 | Details |
| US2591008A | Electronic accumulator | Expired / Lapsed | 1950-01-07 | 1952-04-01 | 0 | Details |
| US2591007A | Electronic accounting machine | Expired / Lapsed | 1949-12-17 | 1952-04-01 | 0 | Details |
| US2591555A | Indicator | Expired / Lapsed | 1949-05-25 | 1952-04-01 | 0 | Details |
| US2591541A | Electronic accumulator | Expired / Lapsed | 1949-01-15 | 1952-04-01 | 0 | Details |
| US2587824A | Rubber drive for printing hammers | Expired / Lapsed | 1950-10-05 | 1952-03-04 | 0 | Details |
| US2584363A | Electronic counting device | Expired / Lapsed | 1947-07-10 | 1952-02-05 | 0 | Details |
| US2575331A | Electronic multiplying device | Expired / Lapsed | 1945-10-18 | 1951-11-20 | 0 | Details |
| US2551683A | Indicator | Expired / Lapsed | 1949-02-23 | 1951-05-08 | 0 | Details |
| US2550473A | Pressure sensitive record material | Expired / Lapsed | 1950-09-15 | 1951-04-24 | 0 | Details |
| US2550468A | Manifold record material and process for making it | Expired / Lapsed | 1950-09-07 | 1951-04-24 | 0 | Details |
| US2548366A | Manifold record material and process for making it | Expired / Lapsed | 1948-07-31 | 1951-04-10 | 0 | Details |
| US2540226A | Electromechanical storage mechanism | Expired / Lapsed | 1947-12-20 | 1951-02-06 | 0 | Details |
| US2526311A | Porous body | Expired / Lapsed | 1943-09-24 | 1950-10-17 | 2 | Details |
| US2505484A | Process of making pressure sensitive record material | Expired / Lapsed | 1948-12-02 | 1950-04-25 | 2 | Details |
| US2505481A | Process of making pressure sensitive record material | Expired / Lapsed | 1948-12-02 | 1950-04-25 | 2 | Details |
| US2505487A | Process of making pressure sensitive record material | Expired / Lapsed | 1948-12-02 | 1950-04-25 | 2 | Details |
| US2503127A | Electric impulse generator for calculating machines | Expired / Lapsed | 1947-08-06 | 1950-04-04 | 0 | Details |
| US2466467A | Communication system | Expired / Lapsed | 1945-05-30 | 1949-04-05 | 0 | Details |
| US2451812A | Electron tube variable impulse transmitter | Expired / Lapsed | 1944-02-19 | 1948-10-19 | 0 | Details |
| US2451859A | Electron tube variable impulse communication system | Expired / Lapsed | 1943-02-25 | 1948-10-19 | 0 | Details |
| US2442428A | Calculating device | Expired / Lapsed | 1943-12-27 | 1948-06-01 | 0 | Details |
| US2432608A | Multianode, gas-filled discharge device | Expired / Lapsed | 1941-03-28 | 1947-12-16 | 0 | Details |
| US2428089A | Communication system | Expired / Lapsed | 1945-05-30 | 1947-09-30 | 0 | Details |
| US2426278A | Electronic device | Expired / Lapsed | 1944-04-19 | 1947-08-26 | 0 | Details |
| US2426279A | Electronic accumulator | Expired / Lapsed | 1942-04-30 | 1947-08-26 | 0 | Details |
| US2425307A | Communication system | Expired / Lapsed | 1942-09-16 | 1947-08-12 | 0 | Details |
| US2422583A | Electronic device | Expired / Lapsed | 1944-01-27 | 1947-06-17 | 0 | Details |
| US2416095A | Electronic device | Expired / Lapsed | 1944-01-27 | 1947-02-18 | 0 | Details |
| US2405664A | Electronic accumulator | Expired / Lapsed | 1941-07-17 | 1946-08-13 | 0 | Details |
| US2405096A | Electronic accumulator | Expired / Lapsed | 1941-06-04 | 1946-07-30 | 0 | Details |
| US2404697A | Calculating device | Expired / Lapsed | 1942-03-21 | 1946-07-23 | 0 | Details |
| US2404739A | Calculating machine | Expired / Lapsed | 1940-07-18 | 1946-07-23 | 0 | Details |
| US2403873A | Impulse emitter | Expired / Lapsed | 1942-08-06 | 1946-07-09 | 0 | Details |
| US2403852A | Electronic device and control means therefor | Expired / Lapsed | 1940-11-07 | 1946-07-09 | 0 | Details |
| US2402372A | Electronic counting device | Expired / Lapsed | 1943-05-06 | 1946-06-18 | 0 | Details |
| US2402432A | Electronic counting ring | Expired / Lapsed | 1943-03-22 | 1946-06-18 | 0 | Details |
| US2401621A | Electronic accumulator | Expired / Lapsed | 1941-12-31 | 1946-06-04 | 0 | Details |
| US2401657A | Electronic accumulator | Expired / Lapsed | 1941-05-31 | 1946-06-04 | 0 | Details |
| US2398771A | Electronic device | Expired / Lapsed | 1943-05-24 | 1946-04-23 | 0 | Details |
| US2398150A | Electronic device | Expired / Lapsed | 1943-03-03 | 1946-04-09 | 0 | Details |
| US2392521A | Porous resilient printing plate | Expired / Lapsed | 1943-04-01 | 1946-01-08 | 0 | Details |
| US2386834A | Mechanical device | Expired / Lapsed | 1943-04-03 | 1945-10-16 | 0 | Details |
| US2353877A | Process for making resilient porous products | Expired / Lapsed | 1942-01-19 | 1944-07-18 | 0 | Details |
| US2352082A | Frequency meter | Expired / Lapsed | 1941-07-23 | 1944-06-20 | 0 | Details |
| US2350454A | Zero elimination means | Expired / Lapsed | 1942-06-18 | 1944-06-06 | 0 | Details |
| US2346616A | Multiplying machine | Expired / Lapsed | 1941-05-07 | 1944-04-11 | 0 | Details |
| US2332755A | Accounting machine | Expired / Lapsed | 1940-04-27 | 1943-10-26 | 0 | Details |
| US2316520A | Accounting machine | Expired / Lapsed | 1940-08-02 | 1943-04-13 | 0 | Details |
| US2299694A | Manifolding material | Expired / Lapsed | 1940-03-09 | 1942-10-20 | 0 | Details |
| US2299693A | Coating for paper | Expired / Lapsed | 1940-02-23 | 1942-10-20 | 0 | Details |
| US2288520A | Cash register | Expired / Lapsed | 1939-08-11 | 1942-06-30 | 0 | Details |
| US2262235A | Electric calculating machine | Expired / Lapsed | 1938-07-21 | 1941-11-11 | 0 | Details |
| US2260970A | Impression mechanism | Expired / Lapsed | 1938-06-04 | 1941-10-28 | 0 | Details |
| US2176145A | Cash register | Expired / Lapsed | 1934-03-10 | 1939-10-17 | 0 | Details |
| US2082098A | Calculating machine | Expired / Lapsed | 1934-06-25 | 1937-06-01 | 0 | Details |
| US2044842A | Accounting machine | Expired / Lapsed | 1931-06-22 | 1936-06-23 | 0 | Details |
| US1987015A | Overdraft control of ribbon mechanism | Expired / Lapsed | 1932-09-12 | 1935-01-08 | 0 | Details |
| US1874184A | Auditing machine | Expired / Lapsed | 1930-05-02 | 1932-08-30 | 0 | Details |
| US1761662A | Auditing machine | Expired / Lapsed | 1923-02-26 | 1930-06-03 | 0 | Details |
| US1694009A | Auditing machine | Expired / Lapsed | 1919-08-11 | 1928-12-04 | 0 | Details |
| US1619796A | Cash register | Expired / Lapsed | 1921-03-11 | 1927-03-01 | 0 | Details |
| US1361791A | Sorting and accounting machine | Expired / Lapsed | 1916-03-02 | 1920-12-07 | 0 | Details |
| US1265725A | Ticket-printing mechanism. | Expired / Lapsed | 1916-07-24 | 1918-05-14 | 0 | Details |
| US1189269A | Registering, recording, and computing system. | Expired / Lapsed | 1912-07-12 | 1916-07-04 | 0 | Details |
| US1116440A | Indicating mechanism. | Expired / Lapsed | 1907-12-21 | 1914-11-10 | 0 | Details |
| US1115626A | Printing cash-register. | Expired / Lapsed | 1910-11-21 | 1914-11-03 | 0 | Details |
| US1044597A | Calculating mechanism for type-writers. | Expired / Lapsed | 1909-06-11 | 1912-11-19 | 0 | Details |
| US1005555A | Cash-register. | Expired / Lapsed | 1906-06-08 | 1911-10-10 | 0 | Details |
| US997983A | Recording device. | Expired / Lapsed | 1903-12-26 | 1911-07-18 | 0 | Details |
| US988327A | Electric cash-register. | Expired / Lapsed | 1907-05-31 | 1911-04-04 | 0 | Details |
| US945912A | Electric cash-register. | Expired / Lapsed | 1907-02-28 | 1910-01-11 | 0 | Details |
| US939289A | Cash-register. | Expired / Lapsed | 1905-09-22 | 1909-11-09 | 0 | Details |