CROUZET
🏢 View company profile →44Patents
2Active
44Granted
39Portfolio score
Filing activity: Dec 31, 1974 → Mar 15, 2021
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4609957A | Magnetic card reader-encoder apparatus | Physics | 91 | Expired |
| US4414753A | Process for compensating the magnetic disturbances in the determination of a magnetic heading, and devices for carrying out this process | Physics | 57 | Expired |
| US4482828A | Disconnectable electromagnetic eccentric actuator | Emerging Cross-Sectional Technologies | 57 | Expired |
| US4471246A | Electric motor having improved construction to facilitate assembly | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4086527A | Method and apparatus for monetary articles authentification | Physics | 33 | Expired |
| US3961211A | Gyroscope motor | Electricity | 30 | Expired |
| US4276643A | Method of and means for routing binary messages through a multinode data-transmission system | Electricity | 30 | Expired |
| US4727450A | Temperature measuring, protection and safety device, thermal protection device using the temperature measuring device and electronic power controller using the thermal protection device | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4920256A | Universal electronic payment terminal base including memory card programming voltage booster | Electricity | 20 | Expired |
| US4218173A | Robots | Physics | 20 | Expired |
| US4403138A | Heat-destructible magnetic memory element | Physics | 18 | Expired |
| US4216358A | Snap switch | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4476725A | Differential pressure gauge | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4335463A | Simultaneous integral multi-access transmission system on transmission lines by optical fibres | Electricity | 13 | Expired |
| US4710668A | Vibrating string resonator | Physics | 13 | Expired |
| US4173889A | Ultrasonic flowmeter | Performing Operations; Transporting | 11 | Expired |
| US4768877A | Method and device for measuring the propagation time of a wave | Physics | 11 | Expired |
| US4939351A | Automatic payment machine delivering a voucher | Physics | 11 | Expired |
| US4739660A | Accelerometer with vibrating element | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4215812A | Magnetic information carrier | Physics | 8 | Expired |
| US4209005A | Apparatus for cutting silicon having a pivoted work carriage utilizing an air bearing | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4684770A | Microswitch | Electricity | 7 | Expired |
| US4090151A | Temperature sensing device for producing alternating electric signals whose period is a function of a temperature | Physics | 5 | Expired |
| US4216466A | Digital to synchro converter | Electricity | 5 | Expired |
| US4928270A | Digital timer with constant resolution | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.