Inventor · disambiguated record
Roger W. Lhotak
Also filed as: LHOTAK ROGER W · LHOTAK ROGER WILLIAM
11 granted patents·303 citations·filing 1990–2014
92Inventor score
Top patents by PatentIndex Score
11 records- 0190US4973257ABattery terminalCHAMBERLAIN GROUP INC·Filed 1990·Granted Nov 27, 1990·84 cites·6 claims
- 0282US8001725B2Shaft jointCHAMBERLAIN GROUP INC·Filed 2005·Granted Aug 23, 2011·13 cites·11 claims
- 0381US5137500ASprocket conversion kit for garage door openerCHAMBERLAIN GROUP INC·Filed 1991·Granted Aug 11, 1992·50 cites·19 claims
- 0479US5239776AGarage door openerCHAMBERLAIN GROUP INC·Filed 1992·Granted Aug 31, 1993·46 cites·17 claims
- 0576US6051947APass point system for controlling the operation of movable barriersCHAMBERLAIN GROUP INC·Filed 1998·Granted Apr 18, 2000·38 cites·35 claims
- 0675US9458902B2Movable barrier hydraulic brakingCHAMBERLAIN GROUP INC·Filed 2014·Granted Oct 4, 2016·2 cites·28 claims
- 0767US5761850AGarage door operator having vibration damper for noise reductionCHAMBERLAIN GROUP INC·Filed 1996·Granted Jun 9, 1998·25 cites·14 claims
- 0859US6414454B1Pass point system for controlling the operation of movable barriersCHAMBERLAIN GROUP INC·Filed 1999·Granted Jul 2, 2002·22 cites·40 claims
- 0952US5297782AModular snubber apparatusCHAMBERLAIN GROUP INC·Filed 1991·Granted Mar 29, 1994·13 cites·6 claims
- 1051US8783426B2Movable barrier hydraulic brakingLHOTAK ROGER WILLIAM·Filed 2011·Granted Jul 22, 2014·2 cites·8 claims
- 1140US5860365ATensioning device for flexible drive memberCHAMBERLAIN GROUP INC·Filed 1997·Granted Jan 19, 1999·8 cites·12 claims
Join the waitlist — get patent alerts
Get an alert when Roger W. Lhotak files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →