Inventor · disambiguated record
Timothy A. Hegemier
Also filed as: HEGEMIER TIMOTHY A · HEGEMIER TIMOTHY ALAN · STAMBACK LEGAL REPRESENTATIVE
15 granted patents·2 pending applications·320 citations·filing 1992–2016
94Inventor score
Top patents by PatentIndex Score
17 records- 0190US6764079B1Valve seal assembly with straight-walled retainerDANA CORP·Filed 2002·Granted Jul 20, 2004·34 cites·14 claims
- 0290US6244235B1Heavy-duty valve stem seal assemblyDANA CORP·Filed 2000·Granted Jun 12, 2001·36 cites·12 claims
- 0388US5273134AOil consumption measurement system for internal combustion engineDANA CORP·Filed 1992·Granted Dec 28, 1993·75 cites·20 claims
- 0487US9052018B2Eccentricity tolerant valve stem seal assemblyHEGEMIER TIMOTHY A·Filed 2011·Granted Jun 9, 2015·8 cites·18 claims
- 0587US6450143B1Heavy-duty valve stem seal assemblyDANA CORP·Filed 2001·Granted Sep 17, 2002·28 cites·16 claims
- 0683US6938877B2Valve stem seal assemblyDANA CORP·Filed 2003·Granted Sep 6, 2005·27 cites·7 claims
- 0783US6209504B1Heavy-duty valve stem sealDANA CORP·Filed 1999·Granted Apr 3, 2001·39 cites·5 claims
- 0874US7299779B2Upside-down square-up valve stem sealDANA CORP·Filed 2005·Granted Nov 27, 2007·5 cites·16 claims
- 0970US6270082B1Coextruded valve stem sealDANA CORP·Filed 1999·Granted Aug 7, 2001·23 cites·10 claims
- 1068US9371749B2Hybrid valve stem seal retainer assemblyHEGEMIER TIMOTHY A·Filed 2013·Granted Jun 21, 2016·2 cites·13 claims
- 1168US6848671B2Valve spring anti-rotation apparatusDANA CORP·Filed 2001·Granted Feb 1, 2005·11 cites·12 claims
- 1267US5701861ACylinder with hybrid bore surfaceDANA CORP·Filed 1994·Granted Dec 30, 1997·22 cites·4 claims
- 1366US6764063B2Valve seal assembly with bottom flange sealDANA CORP·Filed 2001·Granted Jul 20, 2004·10 cites·20 claims
- 1463US10513951B2Frustoconically supported valve stem seal assemblyDANA AUTOMOTIVE SYSTEMS GROUP·Filed 2016·Granted Dec 24, 2019·0 cites·12 claims
- 1543US7013692B2Valve guide grooving toolDANA CORP·Filed 2003·Granted Mar 21, 2006·0 cites·10 claims
- 1639US2017167316A1End reinforced valve stem seal assemblyDANA AUTOMOTIVE SYSTEMS GROUP·Filed 2016·Application pending·0 cites
- 1733US2003146580A1Valve seal assembly with multiple leg retainerFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →