Centre Electronique Horloger S.A.
50Patents
0Active
50Granted
40Portfolio score
Filing activity: Nov 11, 1974 → Mar 12, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4483194A | Accelerometer | Physics | 196 | Expired |
| US4564836A | Miniature shutter type display device with multiplexing capability | Physics | 99 | Expired |
| US5630130A | Multi-tasking low-power controller having multiple program counters | Physics | 94 | Expired |
| US4383255A | Miniature display device | Physics | 90 | Expired |
| US4242676A | Interactive device for data input into an instrument of small dimensions | Electricity | 88 | Expired |
| US4106279A | Wrist watch incorporating a thermoelectric generator | Physics | 45 | Expired |
| US4047010A | Multi-functional electronic watch | Electricity | 32 | Expired |
| US4228527A | Electrically reprogrammable non volatile memory | Physics | 32 | Expired |
| US4327320A | Reference voltage source | Electricity | 27 | Expired |
| US4041522A | Integrated circuit and manufacture thereof | Electricity | 25 | Expired |
| US4385291A | Electronic diary watch | Physics | 25 | Expired |
| US4015208A | Frequency generator compensated as a function of at least one physical parameter of the environment | Physics | 24 | Expired |
| US4399523A | Non-volatile, electrically erasable and reprogrammable memory element | Electricity | 24 | Expired |
| US4584056A | Method of manufacturing a device with micro-shutters and application of such a method to obtain a light modulating device | Physics | 22 | Expired |
| US4039969A | Quartz thermometer | Electricity | 21 | Expired |
| US4228534A | Electronic watch control device for manual actuation | Physics | 20 | Expired |
| US4628274A | Amplifier with input drift voltage compensation | Electricity | 19 | Expired |
| US4532535A | Electrically reprogrammable non volatile memory cell floating gate EEPROM with tunneling to substrate region | Electricity | 18 | Expired |
| US4313071A | Piezo-electric quartz resonator | Electricity | 18 | Expired |
| US4435986A | Pressure transducer of the vibrating element type | Physics | 17 | Expired |
| US4140924A | Logic CMOS transistor circuits | Electricity | 16 | Expired |
| US4503353A | Cut angles for tuning fork type quartz resonators | Electricity | 15 | Expired |
| US4199751A | Device for the input of alphanumerical data for apparatus of small size | Electricity | 14 | Expired |
| US4450378A | ZT-Cut piezo-electric resonator | Physics | 13 | Expired |
| US3950936A | Device for providing an electro-optical display of time | Physics | 13 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.