Inventor · disambiguated record
Thomas M. Kowalczyk
Also filed as: KOWALCZYK THOMAS M · KOWALCZYK THOMAS MICHAEL
36 granted patents·3 pending applications·951 citations·filing 1994–2024
98Inventor score
Files withOTIS ELEVATOR CO21STANLEY WORKS8ALLEGION ACCESS TECH LLC3STANLEY BLACK & DECKER INC3HAMAKER LARRY1
Top patents by PatentIndex Score
39 records- 0199US6481160B1Axial door operatorSTANLEY WORKS·Filed 2000·Granted Nov 19, 2002·139 cites·44 claims
- 0296US6588153B1Power door kitSTANLEY WORKS·Filed 2000·Granted Jul 8, 2003·76 cites·28 claims
- 0396US6336294B1Automatic door assembly and door operator thereforSTANLEY WORKS·Filed 2000·Granted Jan 8, 2002·68 cites·105 claims
- 0495US6786006B2Automatic door assembly and door operator thereforSTANLEY WORKS·Filed 2003·Granted Sep 7, 2004·56 cites·31 claims
- 0594US6553717B2Retrofit power door assemblySTANLEY WORKS·Filed 2001·Granted Apr 29, 2003·81 cites·44 claims
- 0693US6530178B1Automatic door assembly and door operator thereforSTANLEY WORKS·Filed 2000·Granted Mar 11, 2003·48 cites·5 claims
- 0791US8627604B2Bypass doorSEYMOUR DANIEL R·Filed 2011·Granted Jan 14, 2014·28 cites·21 claims
- 0891US8443549B2Sliding door with large openingSALVIETTI MICHAEL ARTHUR·Filed 2010·Granted May 21, 2013·53 cites·20 claims
- 0984US8756864B2Slide doorHAMAKER LARRY·Filed 2011·Granted Jun 24, 2014·22 cites·20 claims
- 1083US12291912B2Door system having a swing interlock systemALLEGION ACCESS TECH LLC·Filed 2023·Granted May 6, 2025·1 cites·22 claims
- 1181US11555344B2Door system having a swing interlock systemSTANLEY BLACK & DECKER INC·Filed 2017·Granted Jan 17, 2023·4 cites·17 claims
- 1277US2025257587A1Slide latching system for a door systemALLEGION ACCESS TECH LLC·Filed 2024·Application pending·0 cites
- 1373US8365469B2Door operating systemSTANLEY BLACK & DECKER INC·Filed 2007·Granted Feb 5, 2013·7 cites·6 claims
- 1473US5732796AElevator car evacuation deterrent deviceOTIS ELEVATOR CO·Filed 1995·Granted Mar 31, 1998·29 cites·6 claims
- 1568US5651428AStationary actuator moving vane elevator car door couplingOTIS ELEVATOR CO·Filed 1996·Granted Jul 29, 1997·27 cites·11 claims
- 1666US5612518ALinear induction motor door drive assembly for elevatorsOTIS ELEVATOR CO·Filed 1994·Granted Mar 18, 1997·22 cites·4 claims
- 1766US5454447AElevator hoistway door bolt lockOTIS ELEVATOR CO·Filed 1994·Granted Oct 3, 1995·22 cites·9 claims
- 1863US5949036ADouble linear motor and elevator doors using sameOTIS ELEVATOR CO·Filed 1998·Granted Sep 7, 1999·25 cites·18 claims
- 1961US5651427AElevator door coupling and hold-close apparatusOTIS ELEVATOR CO·Filed 1995·Granted Jul 29, 1997·21 cites·11 claims
- 2060US8997401B2Bi-parting, bi-directional door systemSTANLEY BLACK & DECKER INC·Filed 2013·Granted Apr 7, 2015·5 cites·20 claims
- 2160US5503248AMaintaining open loop current drive to linear induction motorOTIS ELEVATOR CO·Filed 1994·Granted Apr 2, 1996·23 cites·6 claims
- 2259US5538106ARotationally stiff elevator car door couplingOTIS ELEVATOR CO·Filed 1994·Granted Jul 23, 1996·18 cites·6 claims
- 2357US5736693AElevator door drive using dual secondary linear induction motorOTIS ELEVATOR CO·Filed 1995·Granted Apr 7, 1998·25 cites·3 claims
- 2454US5509504AVelocity regulated, open current loop, variable voltage, variable frequency, linear induction motor drive for an elevator car doorOTIS ELEVATOR CO·Filed 1994·Granted Apr 23, 1996·20 cites·4 claims
- 2552US5495918ASmooth and quiet linear induction motor elevator door operationOTIS ELEVATOR CO·Filed 1994·Granted Mar 5, 1996·15 cites·4 claims
- 2649US5808246ATriac drive for three-phase line-powered linear induction motor elevator door operatorOTIS ELEVATOR CO·Filed 1995·Granted Sep 15, 1998·15 cites·9 claims
- 2748US12168893B2Slide latching system for a door systemALLEGION ACCESS TECH LLC·Filed 2017·Granted Dec 17, 2024·0 cites·16 claims
- 2848US5668355AElevator cab door drive systemOTIS ELEVATOR CO·Filed 1994·Granted Sep 16, 1997·13 cites·3 claims
- 2948US2007261309A1Automatic door assembly with telescoping door armSTANLEY WORKS·Filed 2006·Application pending·0 cites
- 3045US5862887AHigh performance linear induction motor door operatorOTIS ELEVATOR CO·Filed 1996·Granted Jan 26, 1999·15 cites·5 claims
- 3144US2003005639A1Axial door operatorSTANLEY WORKS·Filed 2002·Application pending·0 cites
- 3243US6182516B1Low-cost, easy-to-use, dynamometerFiled 1999·Granted Feb 6, 2001·9 cites·11 claims
- 3342US5918706AHold closed feature for elevator car doorsOTIS ELEVATOR CO·Filed 1997·Granted Jul 6, 1999·10 cites·3 claims
- 3442US5435415ACammed wedge elevator car door couplingOTIS ELEVATOR CO·Filed 1994·Granted Jul 25, 1995·10 cites·8 claims
- 3541US5494137AElevator door mounting systemOTIS ELEVATOR CO·Filed 1994·Granted Feb 27, 1996·12 cites·6 claims
- 3641US5485896ARotary elevator car door couplingOTIS ELEVATOR CO·Filed 1994·Granted Jan 23, 1996·9 cites·4 claims
- 3739US5682023ATime-optimal control of an AC line-driven linear motor elevator door operatorOTIS ELEVATOR CO·Filed 1995·Granted Oct 28, 1997·9 cites·15 claims
- 3836US5669465AElevator hoistway door bolt lockOTIS ELEVATOR CO·Filed 1995·Granted Sep 23, 1997·8 cites·7 claims
- 3934US5880414AElevator door brake, brake, lock, and hold-openOTIS ELEVATOR CO·Filed 1997·Granted Mar 9, 1999·6 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →