| Patents for G04G 19 - Electric power supply circuits specially adapted for use in electronic time-pieces (1,255) |
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| 02/25/1998 | CN1174336A Date writer for camera with lens |
| 02/12/1998 | WO1998006013A1 Electronic timepiece |
| 01/21/1998 | EP0820139A2 Continuous power supply circuit controlled by a reversible converter |
| 01/16/1998 | CA2210433A1 Continuous electric power supply circuit regulated by a reversible converter |
| 01/14/1998 | EP0818719A1 Heavy load driving device for electronic timepiece |
| 01/07/1998 | EP0816955A1 Electronic circuit and timepiece containing such a circuit |
| 01/06/1998 | US5705895 Power circuit with duty conversion circuit for driving a capacitive load |
| 12/09/1997 | US5696496 Portable messaging and scheduling device with homebase station |
| 11/26/1997 | EP0809161A1 Means for the accelerated correction of the time after a low supply voltage |
| 08/12/1997 | US5657297 Clock apparatus having high accuracy |
| 08/12/1997 | US5656875 Creating independance via electronically presented information segments |
| 07/17/1997 | DE19600851A1 Reserve circuit for preventing data loss during program control power supply drop-out e.g. for cooker |
| 07/15/1997 | US5648760 Portable messaging and scheduling device with homebase station |
| 07/09/1997 | EP0783144A1 Clock |
| 05/15/1997 | WO1997017636A1 Heavy load driving device for electronic timepiece |
| 05/15/1997 | DE19638616A1 Electronic clock with booster |
| 04/30/1997 | CN1148752A Dynamo used in clock |
| 03/25/1997 | US5615178 Electronic control timepiece |
| 03/25/1997 | US5615129 Method and apparatus for adaptive and corrective determination of battery run-time in uninterruptible power systems |
| 03/13/1997 | WO1997009657A1 Timepiece movement |
| 03/12/1997 | EP0762242A1 Portable electronic device |
| 01/22/1997 | CN1140971A Small hand-held electronic apparatus with field effect light emitting device |
| 01/02/1997 | EP0751445A1 Electric power generator for timepiece |
| 11/27/1996 | EP0744675A1 Time measuring instrument particularly electric wrist watch of the analogue type |
| 11/20/1996 | EP0743808A1 A driving system for a light emitting device and an apparatus comprising the same |
| 11/20/1996 | CA2176871A1 Small hand-held electronic apparatus with field effect light emitting device |
| 09/11/1996 | CN1130769A Electronic device comprising fastening arrangement |
| 09/06/1996 | WO1996019261A3 Movement powered medical pulse generator having a full-wave rectifier with dynamic bias |
| 09/05/1996 | DE19507543A1 Radio:controlled analogue clock or watch with automatic hand resetting |
| 07/30/1996 | US5540729 Movement powered medical pulse generator having a full-wave rectifier with dynamic bias |
| 07/18/1996 | DE19500679A1 Control for extended time runs for ventilator, staircase light timing and roller shutter |
| 06/27/1996 | WO1996019261A2 Movement powered medical pulse generator having a full-wave rectifier with dynamic bias |
| 06/27/1996 | CA2204879A1 Movement powered medical pulse generator having a full-wave rectifier with dynamic bias |
| 06/26/1996 | EP0718725A1 Electronic device provided with fastening means |
| 06/12/1996 | CN1124526A AC driving device |
| 05/14/1996 | US5517468 Electronic timepiece with thermoelectric element |
| 04/16/1996 | US5508878 Electronic timer using zero power while off |
| 03/12/1996 | US5498913 Power supply control apparatus with a manually operable control switch |
| 03/05/1996 | US5497073 Constant current source having band-gap reference voltage source |
| 02/29/1996 | DE19531205A1 Elektronische Uhr Electronic Clock |
| 02/20/1996 | US5493498 Positioning apparatus |
| 02/07/1996 | EP0695980A1 Ac driving device |
| 02/07/1996 | EP0695978A1 Electronic control timepiece |
| 01/25/1996 | DE4424337A1 Electric timepiece hands setting system |
| 01/09/1996 | US5483503 In an electronic watch |
| 12/06/1995 | EP0685777A2 Electronic timepiece and method of charging the same |
| 10/24/1995 | US5461652 Clock control circuit |
| 10/10/1995 | US5457664 Energy saving timepiece |
| 10/04/1995 | EP0616749A4 Portable messaging and scheduling device with homebase station. |
| 09/26/1995 | USRE35043 Self-charging electronic timepiece |
| 09/20/1995 | CN1108748A Controling apparatus for air conditioner |
| 08/31/1995 | WO1995023359A1 Ac driving device |
| 06/29/1995 | DE4344447A1 Electrical constant current source |
| 06/14/1995 | EP0657793A1 Radio-corrected electronic timepiece |
| 04/11/1995 | US5406272 Radio paging receiver |
| 04/05/1995 | CN1101115A Controlling device of heat supplying arrangement |
| 03/07/1995 | US5396473 Timepiece including a power cell compartment closed by a gasket seal |
| 12/07/1994 | CN1026920C Electronic wristwatch with generator |
| 10/25/1994 | US5359577 Alarm clock having an ambient light detector |
| 09/28/1994 | EP0616749A1 Portable messaging and scheduling device with homebase station |
| 09/14/1994 | EP0615178A2 Commutating check without battery, with backup power supply |
| 08/16/1994 | US5339296 Electric alarm clock with battery back-up |
| 08/03/1994 | CN1090401A Timepiece including a power cell compartment closed by a gasket seal |
| 06/29/1994 | CN1025250C Electronic wristwatch with function of easyly changing cell |
| 05/18/1994 | EP0597357A1 Timepiece with a battery-cover sealed by a gasket |
| 04/21/1994 | DE4307854C1 Mains-operated clock supplied via rectifier and capacitor supply - sends interrogation signal to processor for triggering switching relay when supply voltage is above min. threshold and up=down counter, for receiving time signals, has zero contents |
| 12/29/1993 | EP0575781A2 Electronic commutating device |
| 11/23/1993 | US5263577 Holder for a replacement battery for a watch |
| 06/24/1993 | WO1993012618A1 Portable messaging and scheduling device with homebase station |
| 06/02/1993 | EP0544195A1 Container for replacement battery for watch |
| 06/02/1993 | CN1072781A Holder for replacement battery for watch |
| 05/29/1993 | CA2083344A1 Holder for a replacement battery for a watch |
| 05/11/1993 | CA1317636C System and method for power supply preservation in a personal health monitor |
| 01/19/1993 | US5181192 Housing for an energy cell in a wristwatch |
| 01/05/1993 | US5177714 Autonomous radio timepiece |
| 07/07/1992 | US5128552 System and method for power supply preservation in a personal health monitor |
| 05/13/1992 | EP0484833A2 Time switch device |
| 04/21/1992 | US5107138 Integrated circuit with battery serving as power source having CMOS analog and digital circuits and regulated stepped up voltage source |
| 12/18/1991 | CN1057116A Housing for energy cell in wristwatch |
| 12/11/1991 | EP0460525A1 Housing for the battery of a wristwatch |
| 11/05/1991 | US5063355 Timer circuit |
| 08/07/1991 | EP0439725A2 Autonomous radio-controlled clock |
| 06/26/1991 | EP0433960A2 Electronic watch |
| 03/19/1991 | US5001685 Electronic wristwatch with generator |
| 09/19/1990 | EP0388116A1 Timer circuit |
| 02/27/1990 | US4905187 Time-keeping apparatus |
| 08/23/1989 | CN1035009A Electronic wristwatch with generator |
| 08/02/1989 | EP0326313A2 Wrist watch |
| 07/27/1989 | WO1989006834A1 Electronic wrist watch with power generator |
| 07/06/1989 | DE3744162A1 Time switch |
| 03/28/1989 | US4817063 Power source control circuit for an analog electronic timepiece |
| 10/04/1988 | US4775963 Analog watch having two motors and comprising means for perpetually indicating the day of the month |
| 06/14/1988 | US4751521 Time recorder with automatic correction for momentary discontinuation of power supply |
| 06/01/1988 | DE3640551A1 Electrical switch |
| 05/18/1988 | EP0267440A1 Analogous clock with two motors having a perpetual day counter |
| 05/10/1988 | US4744067 Analog electronic watch |
| 03/08/1988 | US4730287 Power supply for electronic timpiece |
| 02/24/1988 | EP0256642A2 Transformerless power supply circuit for a clock circuit |
| 10/06/1987 | US4697930 Transformerless clock circuit with duplex optoelectronic display |
| 09/22/1987 | US4695168 Electronic watch having two motors and comprising means for perpetually indicating the day of the month |