Assignee
SIMPLEX TIME RECORDER CO
US·52 granted patents·1 pending application·1,666 citations·filing 1974–2001
Top patents by PatentIndex Score
53 records- 0189US6038289ARedundant video alarm monitoring systemSIMPLEX TIME RECORDER CO·Filed 1998·Granted Mar 14, 2000·260 cites·8 claims
- 0285US6313744B1Alarm system with individual alarm indicator testingSIMPLEX TIME RECORDER CO·Filed 1998·Granted Nov 6, 2001·87 cites·26 claims
- 0385US5559492ASynchronized strobe alarm systemSIMPLEX TIME RECORDER CO·Filed 1996·Granted Sep 24, 1996·68 cites·13 claims
- 0484US5862201ARedundant alarm monitoring systemSIMPLEX TIME RECORDER CO·Filed 1996·Granted Jan 19, 1999·152 cites·9 claims
- 0584USD299316SClockSIMPLEX TIME RECORDER CO·Filed 1986·Granted Jan 10, 1989·30 cites·1 claims
- 0684US4796025AMonitor/control communication net with intelligent peripheralsSIMPLEX TIME RECORDER CO·Filed 1985·Granted Jan 3, 1989·95 cites·27 claims
- 0783US6033245ASelf-aligning electrical connectorSIMPLEX TIME RECORDER CO·Filed 1997·Granted Mar 7, 2000·77 cites·29 claims
- 0882US4322831AProgrammed digital secondary clockSIMPLEX TIME RECORDER CO·Filed 1978·Granted Mar 30, 1982·21 cites·17 claims
- 0979USD377460SHeat detectorSIMPLEX TIME RECORDER CO·Filed 1995·Granted Jan 21, 1997·23 cites·1 claims
- 1077US6567001B1Fire control panel monitoring for degradation of wiring integrity during alarm stateSIMPLEX TIME RECORDER CO·Filed 2000·Granted May 20, 2003·35 cites·17 claims
- 1177USD388351SSmoke detectorSIMPLEX TIME RECORDER CO·Filed 1997·Granted Dec 30, 1997·21 cites·1 claims
- 1277USD265802SAnnunciatorSIMPLEX TIME RECORDER CO·Filed 1980·Granted Aug 17, 1982·18 cites·1 claims
- 1376US5751218ASmoke detector housing for improved smoke collectionSIMPLEX TIME RECORDER CO·Filed 1996·Granted May 12, 1998·59 cites·20 claims
- 1475US5886620ABuilding alarm system with synchronized strobesSIMPLEX TIME RECORDER CO·Filed 1996·Granted Mar 23, 1999·34 cites·12 claims
- 1575US5552763AFire alarm system with sensitivity adjustmentSIMPLEX TIME RECORDER CO·Filed 1993·Granted Sep 3, 1996·81 cites·41 claims
- 1670US5622427AEmergency strobe lightSIMPLEX TIME RECORDER CO·Filed 1995·Granted Apr 22, 1997·30 cites·35 claims
- 1767USD388352SSmoke detectorSIMPLEX TIME RECORDER CO·Filed 1997·Granted Dec 30, 1997·14 cites·1 claims
- 1866US5818326AEarly fire detection using temperature and smoke sensingSIMPLEX TIME RECORDER CO·Filed 1996·Granted Oct 6, 1998·45 cites·18 claims
- 1966US5173683AApparatus and method for multiplexing multiple data and analog values in a peripheral deviceSIMPLEX TIME RECORDER CO·Filed 1991·Granted Dec 22, 1992·38 cites·10 claims
- 2065US5808556ASmoke/fire detectorSIMPLEX TIME RECORDER CO·Filed 1996·Granted Sep 15, 1998·41 cites·4 claims
- 2164US5865527AEmergency strobe lightSIMPLEX TIME RECORDER CO·Filed 1997·Granted Feb 2, 1999·23 cites·6 claims
- 2264US5710541ASmoke/fire detectorSIMPLEX TIME RECORDER CO·Filed 1995·Granted Jan 20, 1998·35 cites·14 claims
- 2364US5450066AFire alarm heat detectorSIMPLEX TIME RECORDER CO·Filed 1993·Granted Sep 12, 1995·33 cites·17 claims
- 2462US5818334AAddressable devices with interface modules having electrically readable addressesSIMPLEX TIME RECORDER CO·Filed 1995·Granted Oct 6, 1998·34 cites·19 claims
- 2560US6281789B1Alarm system having improved control of notification appliances over common power linesSIMPLEX TIME RECORDER CO·Filed 1999·Granted Aug 28, 2001·29 cites·45 claims
- 2658US5966002AMethod and apparatus for adapting voltage control in alarm systemsSIMPLEX TIME RECORDER CO·Filed 1998·Granted Oct 12, 1999·27 cites·22 claims
- 2755USD383407SGrille for a smoke detectorSIMPLEX TIME RECORDER CO·Filed 1995·Granted Sep 9, 1997·9 cites·1 claims
- 2854US6195011B1Early fire detection using temperature and smoke sensingSIMPLEX TIME RECORDER CO·Filed 1998·Granted Feb 27, 2001·26 cites·14 claims
- 2954USD257234SDigital clockSIMPLEX TIME RECORDER CO·Filed 1978·Granted Oct 7, 1980·6 cites·1 claims
- 3053US4542286ATime card and carrierSIMPLEX TIME RECORDER CO·Filed 1982·Granted Sep 17, 1985·34 cites·15 claims
- 3152US4725818AWalk through test systemSIMPLEX TIME RECORDER CO·Filed 1985·Granted Feb 16, 1988·22 cites·9 claims
- 3248USD368037STime stampSIMPLEX TIME RECORDER CO·Filed 1995·Granted Mar 19, 1996·7 cites·1 claims
- 3346USD257253STerminalSIMPLEX TIME RECORDER CO·Filed 1978·Granted Oct 7, 1980·3 cites·1 claims
- 3445US5761996APivoting time recorderSIMPLEX TIME RECORDER CO·Filed 1995·Granted Jun 9, 1998·10 cites·29 claims
- 3544USD392573SSmoke detectorSIMPLEX TIME RECORDER CO·Filed 1997·Granted Mar 24, 1998·5 cites·1 claims
- 3643US6061303AProgrammable time recorderSIMPLEX TIME RECORDER CO·Filed 1998·Granted May 9, 2000·25 cites·6 claims
- 3742US6034601AMethod and apparatus for determining proper installation of alarm devicesSIMPLEX TIME RECORDER CO·Filed 1998·Granted Mar 7, 2000·13 cites·32 claims
- 3841US5764250ADual-line time recorderSIMPLEX TIME RECORDER CO·Filed 1995·Granted Jun 9, 1998·8 cites·21 claims
- 3941US2002135491A1Electronically controlled multi-tone peripheralSIMPLEX TIME RECORDER CO·Filed 2001·Application pending·0 cites
- 4037US5508977AService technician time recorderSIMPLEX TIME RECORDER CO·Filed 1994·Granted Apr 16, 1996·44 cites·22 claims
- 4136US6265971B1Fiber-sync communications channelSIMPLEX TIME RECORDER CO·Filed 1999·Granted Jul 24, 2001·7 cites·34 claims
- 4235US5990915ATime recorder with code reader and data storageSIMPLEX TIME RECORDER CO·Filed 1995·Granted Nov 23, 1999·10 cites·14 claims
- 4335US3974362AFlexitime recorderSIMPLEX TIME RECORDER CO·Filed 1974·Granted Aug 10, 1976·5 cites·8 claims
- 4432US5793707AProgrammable time recorderSIMPLEX TIME RECORDER CO·Filed 1995·Granted Aug 11, 1998·5 cites·22 claims
- 4530US4415801APrinter countwheel mechanismSIMPLEX TIME RECORDER CO·Filed 1981·Granted Nov 15, 1983·5 cites·11 claims
- 4630US4063071AFlexitime recorderSIMPLEX TIME RECORDER CO·Filed 1976·Granted Dec 13, 1977·5 cites·4 claims
- 4727US3952313ATime recorderSIMPLEX TIME RECORDER CO·Filed 1974·Granted Apr 20, 1976·2 cites·8 claims
- 4823US3978493ATime recorderSIMPLEX TIME RECORDER CO·Filed 1974·Granted Aug 31, 1976·1 cites·6 claims
- 4921US3975743ATime registration device for the recordation of presence or work timeSIMPLEX TIME RECORDER CO·Filed 1975·Granted Aug 17, 1976·1 cites·10 claims
- 5020US4446468ASingle piece trigger and knock off mechanismSIMPLEX TIME RECORDER CO·Filed 1982·Granted May 1, 1984·0 cites·11 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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