Control Data Corp
Control DaActive Patents
0
Total Holdings
73
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| DE3424651A1 | MAGNETIC CONVERTER HEAD | Expired / Lapsed | 1984-07-04 | — | 0 | Details |
| EP0128481A2 | Television viewer data collection system | Expired / Lapsed | 1984-06-01 | — | 6 | Details |
| DE1466043A1 | Synchronized wireless communication system | Expired / Lapsed | 1965-07-30 | — | 0 | Details |
| US4931722A | Flexible imbedded test system for VLSI circuits | Expired / Lapsed | 1989-03-23 | 1990-06-05 | 48 | Details |
| US4779198A | Audience monitoring system | Expired / Lapsed | 1988-01-26 | 1988-10-18 | 64 | Details |
| US4701920A | Built-in self-test system for VLSI circuit chips | Expired / Lapsed | 1985-11-08 | 1987-10-20 | 35 | Details |
| US4658290A | Television and market research data collection system and m… | Expired / Lapsed | 1984-10-05 | 1987-04-14 | 16 | Details |
| US4566030A | Television viewer data collection system | Expired / Lapsed | 1983-06-09 | 1986-01-21 | 5 | Details |
| US4546382A | Television and market research data collection system and m… | Expired / Lapsed | 1983-12-08 | 1985-10-08 | 30 | Details |
| US4482937A | Board to board interconnect structure | Expired / Lapsed | 1982-09-30 | 1984-11-13 | 3 | Details |
| US4337463A | Time synchronization master station and remote station syst… | Expired / Lapsed | 1980-08-22 | 1982-06-29 | 3 | Details |
| US4149238A | Computer interface | Expired / Lapsed | 1977-08-30 | 1979-04-10 | 9 | Details |
| US4096482A | Wide band monopulse antennas with control circuitry | Expired / Lapsed | 1977-04-21 | 1978-06-20 | 6 | Details |
| US4073005A | Multi-processor computer system | Expired / Lapsed | 1974-01-21 | 1978-02-07 | 10 | Details |
| US4044376A | TV monitor | Expired / Lapsed | 1976-08-13 | 1977-08-23 | 17 | Details |
| US3944942A | Automatic gain control circuit and method | Expired / Lapsed | 1972-06-26 | 1976-03-16 | 23 | Details |
| US3938100A | Virtual addressing apparatus for addressing the memory of a… | Expired / Lapsed | 1974-06-07 | 1976-02-10 | 9 | Details |
| US3833889A | Multi-mode data processing system | Expired / Lapsed | 1973-03-08 | 1974-09-03 | 81 | Details |
| US3832603A | Interconnect technique for stacked circuit boards | Expired / Lapsed | 1973-03-09 | 1974-08-27 | 13 | Details |
| US3748451A | General purpose matrix processor with convolution capabilit… | Expired / Lapsed | 1970-08-21 | 1973-07-24 | 28 | Details |
| US3723955A | Beam former | Expired / Lapsed | 1965-11-15 | 1973-03-27 | 14 | Details |
| US3699524A | Adaptive data priority generator | Expired / Lapsed | 1970-08-10 | 1972-10-17 | 23 | Details |
| US3688196A | Quadrature transmission modern using single sideband data d… | Expired / Lapsed | 1970-11-02 | 1972-08-29 | 21 | Details |
| US3623014A | Computer communications system | Expired / Lapsed | 1969-08-25 | 1971-11-23 | 18 | Details |
| US3596188A | Four-phase digital clock | Expired / Lapsed | 1969-12-03 | 1971-07-27 | 11 | Details |
| US3577073A | Apparatus for automated computer maintenance comprising mea… | Expired / Lapsed | 1969-02-18 | 1971-05-04 | 9 | Details |
| US3573542A | Gaseous display control | Expired / Lapsed | 1968-03-28 | 1971-04-06 | 10 | Details |
| US3560927A | Multi-font reading machines | Expired / Lapsed | 1966-11-04 | 1971-02-02 | 0 | Details |
| US3512047A | Surge current control | Expired / Lapsed | 1967-05-22 | 1970-05-12 | 0 | Details |
| US3508206A | Dimensioned interrupt | Expired / Lapsed | 1967-05-01 | 1970-04-21 | 0 | Details |
| US3503031A | Printed circuit keyboard | Expired / Lapsed | 1969-02-11 | 1970-03-24 | 0 | Details |
| US3485953A | Asynchronous time-sharing of multi-carrier channels | Expired / Lapsed | 1966-12-06 | 1969-12-23 | 0 | Details |
| US3484760A | Disc file and actuator therefor | Expired / Lapsed | 1966-06-09 | 1969-12-16 | 0 | Details |
| US3483511A | Reading machine for selectively oriented printed matter | Expired / Lapsed | 1965-10-22 | 1969-12-09 | 0 | Details |
| US3483327A | Transponder for monitoring t.v. program selections | Expired / Lapsed | 1965-03-25 | 1969-12-09 | 0 | Details |
| US3474332A | Electromechanical transducer having a linear output | Expired / Lapsed | 1967-07-21 | 1969-10-21 | 0 | Details |
| US3465297A | Program protection arrangement | Expired / Lapsed | 1966-09-30 | 1969-09-02 | 0 | Details |
| US3451049A | Skew correction arrangement for parallel track readout devi… | Expired / Lapsed | 1966-01-19 | 1969-06-17 | 0 | Details |
| US3444517A | Optical reading machine and specially prepared documents th… | Expired / Lapsed | 1965-03-09 | 1969-05-13 | 0 | Details |
| US3431858A | Pumping system with inertia stabilization | Expired / Lapsed | 1967-09-11 | 1969-03-11 | 0 | Details |
| US3409889A | Synchronized communications system | Expired / Lapsed | 1966-07-18 | 1968-11-05 | 0 | Details |
| US3405227A | Multilayer universal printed circuit board | Expired / Lapsed | 1966-09-16 | 1968-10-08 | 1 | Details |
| US3388393A | Synchronized communications and navigation system | Expired / Lapsed | 1967-01-10 | 1968-06-11 | 0 | Details |
| US3380031A | Remote calculator | Expired / Lapsed | 1965-08-10 | 1968-04-23 | 0 | Details |
| US3346851A | Simultaneous multiprocessing computer system | Expired / Lapsed | 1964-07-08 | 1967-10-10 | 2 | Details |
| US3337854A | Multi-processor using the principle of time-sharing | Expired / Lapsed | 1964-07-08 | 1967-08-22 | 2 | Details |
| US3303466A | Character separating reading machine | Expired / Lapsed | 1963-03-05 | 1967-02-07 | 2 | Details |
| US3303472A | System and apparatus for automatic data collection | Expired / Lapsed | 1962-10-08 | 1967-02-07 | 2 | Details |
| US3300758A | High speed scanner and reservation system | Expired / Lapsed | 1963-06-04 | 1967-01-24 | 2 | Details |
| US3299285A | Two-phase computer systems | Expired / Lapsed | 1963-04-12 | 1967-01-17 | 2 | Details |
| US3296596A | System and apparatus for automatic data collection | Expired / Lapsed | 1963-09-30 | 1967-01-03 | 2 | Details |
| US3289164A | Character normalizing reading machine | Expired / Lapsed | 1964-04-29 | 1966-11-29 | 2 | Details |
| US3262111A | Synchronized communications system | Expired / Lapsed | 1963-12-06 | 1966-07-19 | 4 | Details |
| US3242855A | Electrostrictive printer | Expired / Lapsed | 1963-10-03 | 1966-03-29 | 2 | Details |
| US3234544A | Bi-polar analog-to-digital converter | Expired / Lapsed | 1960-06-10 | 1966-02-08 | 2 | Details |
| US3229036A | Data transmission apparatus | Expired / Lapsed | 1961-10-30 | 1966-01-11 | 2 | Details |
| US3228004A | Logical translator | Expired / Lapsed | 1960-03-07 | 1966-01-04 | 2 | Details |
| US3225301A | Pulse resynchronizing system for converting asynchronous, r… | Expired / Lapsed | 1963-06-04 | 1965-12-21 | 2 | Details |
| US3219974A | Means for determining separation locations between spaced a… | Expired / Lapsed | 1960-11-14 | 1965-11-23 | 1 | Details |
| US3216018A | Wide angle horn feed closely spaced to main reflector | Expired / Lapsed | 1962-10-12 | 1965-11-02 | 2 | Details |
| US3205344A | Electronic display system | Expired / Lapsed | 1962-04-20 | 1965-09-07 | 2 | Details |
| US3200194A | Reading machine with multiple inputs | Expired / Lapsed | 1962-05-22 | 1965-08-10 | 2 | Details |
| US3200373A | Handwritten character reader | Expired / Lapsed | 1960-11-22 | 1965-08-10 | 2 | Details |
| US3193666A | Computer control systems | Expired / Lapsed | 1961-06-09 | 1965-07-06 | 2 | Details |
| US3189873A | Scanning pattern normalizer | Expired / Lapsed | 1962-08-09 | 1965-06-15 | 1 | Details |
| US3182180A | Division system | Expired / Lapsed | 1960-11-17 | 1965-05-04 | 2 | Details |
| US3179923A | Scanning system for large areas | Expired / Lapsed | 1962-10-02 | 1965-04-20 | 1 | Details |
| US3179922A | Normalizing reading machine | Expired / Lapsed | 1962-04-19 | 1965-04-20 | 2 | Details |
| US3178688A | Character recognition by feature selection | Expired / Lapsed | 1962-12-20 | 1965-04-13 | 2 | Details |
| US3173126A | Reading machine with core matrix | Expired / Lapsed | 1961-11-16 | 1965-03-09 | 1 | Details |
| US3171032A | Photomultiplier with stabilized gain | Expired / Lapsed | 1962-03-08 | 1965-02-23 | 1 | Details |
| US3165584A | Digital communication system with detector selection means … | Expired / Lapsed | 1962-10-29 | 1965-01-12 | 1 | Details |
| US3164806A | Continuous register reading machine | Expired / Lapsed | 1961-11-30 | 1965-01-05 | 1 | Details |