Inventor · disambiguated record
Donald Haefner
Also filed as: HAEFNER DONALD · HAEFNER DONALD R · TAYLOR DENNIS O
26 granted patents·314 citations·filing 1978–2018
96Inventor score
Files withEATON CORP15SCHAEFFLER KG6SCHAEFFLER TECHNOLOGIES AG3CUMMINS ENGINE CO INC1SCHAEFFLER TECHNOLOGIES GMBH1
Top patents by PatentIndex Score
26 records- 0197US4206634ATest apparatus and method for an engine mounted fuel pumpCUMMINS ENGINE CO INC·Filed 1978·Granted Jun 10, 1980·66 cites·18 claims
- 0288US9988947B2Fast acting switching valve train system for valve deactivationSCHAEFFLER TECHNOLOGIES AG·Filed 2016·Granted Jun 5, 2018·2 cites·14 claims
- 0380US5152360AThrottle cable intervention deviceEATON CORP·Filed 1989·Granted Oct 6, 1992·23 cites·4 claims
- 0477US4950965AThrottle control servoactuatorEATON CORP·Filed 1989·Granted Aug 21, 1990·21 cites·15 claims
- 0572US5199401AEngine throttle servoactuator control systemEATON CORP·Filed 1991·Granted Apr 6, 1993·27 cites·19 claims
- 0670US10557384B2Coupling for a camshaft phaser arrangement for a concentric camshaft assemblySCHAEFFLER TECHNOLOGIES AG·Filed 2018·Granted Feb 11, 2020·0 cites·20 claims
- 0769US6694934B1Variable valve actuator for internal combustion engineEATON CORP·Filed 2002·Granted Feb 24, 2004·11 cites·8 claims
- 0869US4940109ASplit arm throttle cable intervention deviceEATON CORP·Filed 1989·Granted Jul 10, 1990·16 cites·22 claims
- 0967US7637238B2Hydraulic valve play compensating elementSCHAEFFLER KG·Filed 2007·Granted Dec 29, 2009·4 cites·16 claims
- 1067US4970427AElectrode arrangement for establishing a sustained electrical arcEATON CORP·Filed 1988·Granted Nov 13, 1990·12 cites·14 claims
- 1166US10400638B2Camshaft phaser arrangement for a concentrically arranged camshaft assemblySCHAEFFLER TECHNOLOGIES AG·Filed 2018·Granted Sep 3, 2019·0 cites·20 claims
- 1266US7322328B2Variable cam follower for an internal combustion engineSCHAEFFLER KG·Filed 2005·Granted Jan 29, 2008·3 cites·11 claims
- 1366US6641111B2Dislodging a throttle plate from ice formationEATON CORP·Filed 2002·Granted Nov 4, 2003·14 cites·10 claims
- 1464US9334767B2Roller lifter lubrication guideSCHAEFFLER TECHNOLOGIES GMBH·Filed 2014·Granted May 10, 2016·1 cites·14 claims
- 1564US4969432ATorch ignitor for lean burn enginesEATON CORP·Filed 1988·Granted Nov 13, 1990·17 cites·12 claims
- 1662US7237520B2Hydraulic valve-lash-adjusting element (HVA)SCHAEFFLER KG·Filed 2005·Granted Jul 3, 2007·3 cites·6 claims
- 1761US7380531B2Variable valve drive for changing the control timing of cam-actuated gas-exchange valvesSCHAEFFLER KG·Filed 2006·Granted Jun 3, 2008·2 cites·19 claims
- 1859US6487898B1Engine cylinder pressure sensor with thermal compensation elementEATON CORP·Filed 1997·Granted Dec 3, 2002·26 cites·15 claims
- 1956US7721696B2Cam follower for a valve drive of an internal combustion engineSCHAEFFLER KG·Filed 2007·Granted May 25, 2010·1 cites·7 claims
- 2053US5758307ANormalized misfire detection methodEATON CORP·Filed 1997·Granted May 26, 1998·17 cites·11 claims
- 2151US5559280ACombustion chamber pressure transducer and method of making sameEATON CORP·Filed 1994·Granted Sep 24, 1996·16 cites·17 claims
- 2251US4865003AMethod and apparatus for activating fuel prior to combustionEATON CORP·Filed 1988·Granted Sep 12, 1989·10 cites·29 claims
- 2343US5138211ASpherical cam clutch for servoactuatorEATON CORP·Filed 1991·Granted Aug 11, 1992·8 cites·4 claims
- 2438US7401584B2Adjustable engineSCHAEFFLER KG·Filed 2005·Granted Jul 22, 2008·0 cites·9 claims
- 2538US5282523ATravel limit stop for a motor driven actuatorEATON CORP·Filed 1992·Granted Feb 1, 1994·7 cites·4 claims
- 2638US5161504ADual mode electrical servoactuatorEATON CORP·Filed 1991·Granted Nov 10, 1992·7 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →