Assignee
SCHMERSAL K A GMBH & CO
DE·22 granted patents·421 citations·filing 1982–2006
Top patents by PatentIndex Score
22 records- 0186US4524251AElectrical switchSCHMERSAL K A GMBH & CO·Filed 1983·Granted Jun 18, 1985·29 cites·12 claims
- 0283US4395608ASafety switch assembliesSCHMERSAL K A GMBH & CO·Filed 1982·Granted Jul 26, 1983·30 cites·15 claims
- 0382US6212052B1Contactless safety switchSCHMERSAL K A GMBH & CO·Filed 1999·Granted Apr 3, 2001·50 cites·24 claims
- 0475US6539760B1Monitoring deviceSCHMERSAL K A GMBH & CO·Filed 2000·Granted Apr 1, 2003·28 cites·18 claims
- 0574US7357429B2Safety lockSCHMERSAL K A GMBH & CO·Filed 2006·Granted Apr 15, 2008·15 cites·1 claims
- 0671US6087605APushbutton switchSCHMERSAL K A GMBH & CO·Filed 1998·Granted Jul 11, 2000·34 cites·6 claims
- 0770US4658102AElectric switchSCHMERSAL K A GMBH & CO·Filed 1986·Granted Apr 14, 1987·22 cites·18 claims
- 0867US6366532B1Apparatus for detecting positionSCHMERSAL K A GMBH & CO·Filed 2000·Granted Apr 2, 2002·16 cites·16 claims
- 0965US5821484ASafety switchSCHMERSAL K A GMBH & CO·Filed 1996·Granted Oct 13, 1998·21 cites·21 claims
- 1055US6049284AMethod and zero-speed monitor for monitoring a three-phase machineSCHMERSAL K A GMBH & CO·Filed 1997·Granted Apr 11, 2000·21 cites·20 claims
- 1153US6283514B1Apparatus for monitoring and controlling access to a restricted areaSCHMERSAL K A GMBH & CO·Filed 1999·Granted Sep 4, 2001·26 cites·14 claims
- 1250US6570817B2Apparatus for detecting positionSCHMERSAL K A GMBH & CO·Filed 2001·Granted May 27, 2003·10 cites·21 claims
- 1349US6311803B1Acoustical position detectorSCHMERSAL K A GMBH & CO·Filed 2000·Granted Nov 6, 2001·18 cites·12 claims
- 1449US6210179B1Field-bus connecting deviceSCHMERSAL K A GMBH & CO·Filed 1999·Granted Apr 3, 2001·17 cites·17 claims
- 1548US6798634B2Device for actuating an electromagnetSCHMERSAL K A GMBH & CO·Filed 2002·Granted Sep 28, 2004·4 cites·20 claims
- 1648US5736695ADevice for detecting positionSCHMERSAL K A GMBH & CO·Filed 1995·Granted Apr 7, 1998·31 cites·20 claims
- 1746US5757672AMonitoring system and techniqueSCHMERSAL K A GMBH & CO·Filed 1995·Granted May 26, 1998·18 cites·20 claims
- 1845US5595286ARadius actuator for a safety switchSCHMERSAL K A GMBH & CO·Filed 1995·Granted Jan 21, 1997·9 cites·22 claims
- 1932US6659232B2Method and device for position detection of an object along an acoustic-signal conductorSCHMERSAL K A GMBH & CO·Filed 2002·Granted Dec 9, 2003·7 cites·22 claims
- 2032US6100479AActuator for a safety switchSCHMERSAL K A GMBH & CO·Filed 1999·Granted Aug 8, 2000·4 cites·9 claims
- 2131US5606881AKey operable safety switchSCHMERSAL K A GMBH & CO·Filed 1995·Granted Mar 4, 1997·7 cites·12 claims
- 2230US5896783ASafety switch deviceSCHMERSAL K A GMBH & CO·Filed 1996·Granted Apr 27, 1999·4 cites·20 claims
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