Inventor · disambiguated record
David C. Ochab
Also filed as: OCHAB DAVID · OCHAB DAVID C
17 granted patents·1 pending application·957 citations·filing 1989–2020
95Inventor score
Top patents by PatentIndex Score
18 records- 0197US9856930B2Bi-directional overrunning clutch with outer spring for a drive axleTHE HILLIARD CORP·Filed 2016·Granted Jan 2, 2018·18 cites·17 claims
- 0297US5036939AMultiple axle drive vehicle with overrunning roller clutch hubsPOLARIS IND L P·Filed 1989·Granted Aug 6, 1991·212 cites·24 claims
- 0396US9022195B2Bi-directional overrunning clutch having split roll cage and drag mechanismHILLIARD CORP·Filed 2013·Granted May 5, 2015·20 cites·19 claims
- 0496US6722484B2Bi-directional overrunning clutch for a primary drive axleHILLIARD CORP·Filed 2002·Granted Apr 20, 2004·53 cites·30 claims
- 0595US6622837B2Bi-directional overrunning clutch with automatic backdriveHILLIARD CORP·Filed 2001·Granted Sep 23, 2003·69 cites·30 claims
- 0695USRE38012EBi-directional overrunning clutchHILLIARD CORP·Filed 2001·Granted Mar 4, 2003·101 cites·27 claims
- 0795US6149540AContinuously variable transmission system with engine brakingPOLARIS INC·Filed 1997·Granted Nov 21, 2000·245 cites·40 claims
- 0894US5971123ABi-directional overrunning clutchHILLIARD CORP·Filed 1998·Granted Oct 26, 1999·95 cites·26 claims
- 0993US6629590B2Spring assembly for a bi-directional overrunning clutchHILLIARD CORP·Filed 2001·Granted Oct 7, 2003·62 cites·17 claims
- 1090US8840514B1Bi-directional overrunning clutch with improved indexing mechanismHILLIARD CORP·Filed 2014·Granted Sep 23, 2014·28 cites·28 claims
- 1189US8919513B2Bi-directional overrunning clutch having split roll cageHEATH KELLY P·Filed 2011·Granted Dec 30, 2014·16 cites·16 claims
- 1288US10989258B1Flexible armature plate for an electro-magnetic overrunning clutchTHE HILLIARD CORP·Filed 2019·Granted Apr 27, 2021·4 cites·24 claims
- 1385US7410042B2Self-energizing pump for overrunning clutchHILLIARD CORP·Filed 2006·Granted Aug 12, 2008·17 cites·23 claims
- 1480US8651986B2Drive clutch for a continuously variable transmission with engine braking and built in belt protectionOCHAB DAVID C·Filed 2010·Granted Feb 18, 2014·8 cites·23 claims
- 1575US9272620B2True four wheel drive system for vehicleHILLIARD CORP·Filed 2013·Granted Mar 1, 2016·6 cites·15 claims
- 1667US8613351B2Centrifugal clutch with heat mitigating spring arrangementOCHAB DAVID C·Filed 2011·Granted Dec 24, 2013·3 cites·11 claims
- 1750US12104659B2Flexible armature plate for an electro-magnetic overrunning clutchTHE HILLIARD CORP·Filed 2020·Granted Oct 1, 2024·0 cites·24 claims
- 1837US2015024882A1Driven Clutch with Engine Braking for a Continuously Variable TransmissionHILLIARD CORP·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →