Centre Electronique Horloger S.A.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G04C ELECTROMECHANICAL CLOCKS OR WATCHES 118
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
H03B GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS 162

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5856765 Electronic device comprising an integrated time baseMar 12, 97Jan 05, 99[H03B]
5630130 Multi-tasking low-power controller having multiple program countersAug 22, 94May 13, 97[G06F]
5566137 Watch comprising a display arrangement associated with an optical enlarging deviceJul 17, 95Oct 15, 96[G04C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4873465 2T-cut piezoelectric resonator using coupled contour modesExpiredNov 28, 88Oct 10, 89[H01L]
4680544 Torsion type magnetic field measurement deviceExpiredMar 06, 84Jul 14, 87[G01R]
4672304 Reference voltage sourceExpiredJan 14, 86Jun 09, 87[G05F]
4656574 Logic signal multiplier circuitExpiredSep 17, 84Apr 07, 87[H02M]
4628274 Amplifier with input drift voltage compensationExpiredApr 30, 85Dec 09, 86[H03F]
4584056 Method of manufacturing a device with micro-shutters and application of such a method to obtain a light modulating deviceExpiredNov 13, 84Apr 22, 86[C03C, C23F, B44C]
4580106 Differential amplifier with bipolar transistors which is compatible with standard complimentary MOS (CMOS) technologyExpiredMar 12, 84Apr 01, 86[H03F]
4564836 Miniature shutter type display device with multiplexing capabilityExpiredJun 25, 82Jan 14, 86[G09G]
4532535 Electrically reprogrammable non volatile memory cell floating gate EEPROM with tunneling to substrate regionExpiredAug 16, 82Jul 30, 85[H01L, G11C]
4503353 Cut angles for tuning fork type quartz resonatorsExpiredJul 11, 83Mar 05, 85[H01L]
4483194 AccelerometerExpiredJun 24, 82Nov 20, 84[G01P]
4450378 ZT-Cut piezo-electric resonatorExpiredJan 25, 83May 22, 84[H01L]
4435986 Pressure transducer of the vibrating element typeExpiredNov 09, 81Mar 13, 84[G01L]
4431929 CMOS Dynamic amplifierExpiredMar 08, 82Feb 14, 84[H03F, G06G]
4400092 Analogue and digital displayExpiredJun 12, 81Aug 23, 83[G09F, G04C]
4399523 Non-volatile, electrically erasable and reprogrammable memory elementExpiredAug 22, 80Aug 16, 83[G11C]
4385291 Electronic diary watchExpiredAug 12, 80May 24, 83[G09G]
4383255 Miniature display deviceExpiredMar 10, 81May 10, 83[G08B]
4369440 Data input deviceExpiredMar 10, 81Jan 18, 83[G06F]
4352069 Switched capacitance signal processorExpiredDec 17, 79Sep 28, 82[G06G]

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