Hughes Microelectronics Limited
17Patents
0Active
17Granted
31Portfolio score
Filing activity: Jul 11, 1974 → Jul 17, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5031145A | Sense amplifier | Physics | 33 | Expired |
| US4342101A | Nonvolatile semiconductor memory circuits | Physics | 28 | Expired |
| US5051956A | Memory cell having means for maintaining the gate and substrate at the same potential | Physics | 28 | Expired |
| US4092852A | Multiplexed transducer | Physics | 25 | Expired |
| US4663770A | Non-volatile counting circuit and method which provides for extended counter life | Electricity | 25 | Expired |
| US4262644A | Spark timing control circuit for controlling the timing of spark ignition of an internal combustion engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4839909A | Register access decade counting technique | Electricity | 14 | Expired |
| US4733482A | EEPROM with metal doped insulator | Electricity | 9 | Expired |
| US4191145A | Vacuum sensor | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4000724A | Ignition arrangements for internal combustion engines | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4258355A | Digital to analogue converters | Electricity | 6 | Expired |
| US5105449A | Non-volatile counter employing memory cell groups and fault detection logic | Electricity | 3 | Expired |
| US4213065A | Device for providing a selectively variable proportion of an electrical signal | Electricity | 3 | Expired |
| US5065366A | Non-volatile RAM bit cell | Physics | 1 | Expired |
| US4284990A | Position sensing transducer | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US4558432A | Non-volatile semiconductor memory circuits | Physics | 0 | Expired |
| US3942002A | Signal combining circuits | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.