Inventor · disambiguated record
Colin B. Willmott
Also filed as: WILLMOTT COLIN · WILLMOTT COLIN B · WILLMOTT COLIN BARNS
42 granted patents·4 pending applications·1,685 citations·filing 1975–2018
99Inventor score
Top patents by PatentIndex Score
46 records- 0198US9122254B2Barrier operator feature enhancementCHAMBERLAIN GROUP INC·Filed 2012·Granted Sep 1, 2015·47 cites·55 claims
- 0298US6278249B1Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 2000·Granted Aug 21, 2001·64 cites·5 claims
- 0397US6172475B1Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 1998·Granted Jan 9, 2001·79 cites·6 claims
- 0496US10138671B2Barrier operator feature enhancementCHAMBERLAIN GROUP INC·Filed 2018·Granted Nov 27, 2018·14 cites·16 claims
- 0596US4037201ADigital radio controlCHAMBERLAIN MFG CORP·Filed 1975·Granted Jul 19, 1977·74 cites·10 claims
- 0694US6239569B1Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 2000·Granted May 29, 2001·37 cites·5 claims
- 0794US6229276B1Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 2000·Granted May 8, 2001·37 cites·4 claims
- 0893US4750118ACoding system for multiple transmitters and a single receiver for a garage door openerCHAMBERLAIN MFG CORP·Filed 1985·Granted Jun 7, 1988·287 cites·4 claims
- 0992US6246196B1Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 2000·Granted Jun 12, 2001·28 cites·6 claims
- 1092US4064404AAccessory for a garage door openerCHAMBERLAIN MFG CORP·Filed 1976·Granted Dec 20, 1977·60 cites·6 claims
- 1191USRE37986ECoding system for multiple transmitters and a single receiverCHAMBERLAIN GROUP INC·Filed 2000·Granted Feb 11, 2003·56 cites·62 claims
- 1289US7679301B2Movable barrier operator auto-force setting method and apparatusCHAMBERLAIN GROUP INC·Filed 2008·Granted Mar 16, 2010·15 cites·25 claims
- 1388US7164246B2Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 2005·Granted Jan 16, 2007·8 cites·6 claims
- 1488US6744231B2Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 2001·Granted Jun 1, 2004·22 cites·6 claims
- 1588US6683431B2Movable barrier operatorCHAMBERLIN GROUP INC·Filed 2001·Granted Jan 27, 2004·25 cites·17 claims
- 1687USRE35364ECoding system for multiple transmitters and a single receiver for a garage door openerCHAMBERLAIN GROUP INC·Filed 1995·Granted Oct 29, 1996·89 cites·5 claims
- 1784US6456022B1Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 2000·Granted Sep 24, 2002·16 cites·15 claims
- 1883US6133703ABi-directional pass-point system for controlling the operation of movable barriersCHAMBERLAIN GROUP INC·Filed 1999·Granted Oct 17, 2000·48 cites·20 claims
- 1983USRE36703ECoding system for multiple transmitters and a single receiver for a garage door openerCHAMBERLAIN GROUP INC·Filed 1996·Granted May 16, 2000·72 cites·1 claims
- 2083US5998950AGarage door operator safety apparatusCHAMBERLAIN GROUP INC·Filed 1998·Granted Dec 7, 1999·29 cites·22 claims
- 2182US6400112B1Bi-directional pass-point system for controlling the operation of movable barriersCHAMBERLAIN GROUP INC·Filed 2000·Granted Jun 4, 2002·30 cites·4 claims
- 2282US5803149AJack shaft garage door operatorCHAMBERLAIN GROUP INC·Filed 1997·Granted Sep 8, 1998·58 cites·10 claims
- 2379US7019478B2Movable barrier operator auto-force setting method and apparatusCHAMBERLAIN GROUP INC·Filed 2004·Granted Mar 28, 2006·20 cites·33 claims
- 2478US7432676B2Barrier movement operator having obstruction detectionCHAMBERLAIN GROUP INC·Filed 2006·Granted Oct 7, 2008·8 cites·5 claims
- 2578US5841253AGarage door operator with motor control circuit fault detectionCHAMBERLAIN GROUP INC·Filed 1997·Granted Nov 24, 1998·47 cites·23 claims
- 2678US5684372AGarage door operator safety apparatusCHAMBERLAIN GROUP INC·Filed 1996·Granted Nov 4, 1997·25 cites·13 claims
- 2777US6720747B1Moveable barrier operatorCHAMBERLAIN GROUP INC·Filed 2000·Granted Apr 13, 2004·9 cites·5 claims
- 2875US7132813B2System and method for adapting to barrier nuisances and obstructionsCHAMBERLAIN GROUP INC·Filed 2004·Granted Nov 7, 2006·25 cites·29 claims
- 2974US6417637B2Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 2001·Granted Jul 9, 2002·14 cites·6 claims
- 3074US5656900ARetro-reflective infrared safety sensor for garage door operatorsCHAMBERLAIN GROUP INC·Filed 1995·Granted Aug 12, 1997·67 cites·6 claims
- 3173US7119509B1System and method for automatically requiring secondary safety sensorsCHAMBERLAIN GROUP INC·Filed 2005·Granted Oct 10, 2006·9 cites·19 claims
- 3273US6777902B2Asymmetric drive motor for a barrier operator or the likeCHAMBERLAIN GROUP INC·Filed 2002·Granted Aug 17, 2004·15 cites·18 claims
- 3372US6710560B2Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 2001·Granted Mar 23, 2004·9 cites·5 claims
- 3472US4716301ADigital light controlCHAMBERLAIN MFG CORP·Filed 1986·Granted Dec 29, 1987·51 cites·11 claims
- 3571US6806672B2Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 2003·Granted Oct 19, 2004·8 cites·10 claims
- 3662US5576701ARemote actuating apparatus comprising keypad controlled transmitterCHAMBERLAIN GROUP INC·Filed 1995·Granted Nov 19, 1996·77 cites·10 claims
- 3762US4794731ATwin sprocket garage door openerCHAMBERLAIN GROUP INC·Filed 1987·Granted Jan 3, 1989·25 cites·2 claims
- 3858US7205735B2Barrier movement operator having obstruction detectionCHAMBERLAIN GROUP INC·Filed 2004·Granted Apr 17, 2007·9 cites·6 claims
- 3952US4981444AStrain relief assemblyCHAMBERLAIN GROUP INC·Filed 1989·Granted Jan 1, 1991·14 cites·4 claims
- 4051US5635913ARemote actuating apparatus with long and short operating codesCHAMBERLAIN GROUP INC·Filed 1996·Granted Jun 3, 1997·43 cites·8 claims
- 4150US6774594B2Asymmetric drive motor for a barrier operator or the likeCHAMBERLAIN GROUP INC·Filed 2003·Granted Aug 10, 2004·4 cites·4 claims
- 4245US6737821B1Barrier operator with fault controlCHAMBERLAIN GROUP INC·Filed 1999·Granted May 18, 2004·11 cites·4 claims
- 4344US2005237015A1Method and apparatus using movable barrier zonesCHAMBERLAIN GROUP INC·Filed 2004·Application pending·0 cites
- 4442US2004195986A1Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 2003·Application pending·0 cites
- 4542US2005140323A1Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 2003·Application pending·0 cites
- 4635US2004056621A1Movable barrier operatorCHAMBERLAIN GROUP INC·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →