Lehmann; Robert W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Lehmann; Robert W..The latest application filed is for "hybrid valve stem seal retainer assembly".
- Lehmann; Robert W. - Fort Wayne IN US
| Patent | Date |
|---|---|
| Hybrid valve stem seal retainer assembly Grant 9,371,749 - Hegemier , et al. June 21, 2 | 2016-06-21 |
| Eccentricity tolerant valve stem seal assembly Grant 9,052,018 - Hegemier , et al. June 9, 2 | 2015-06-09 |
| Hybrid Valve Stem Seal Retainer Assembly App 20130200574 - Hegemier; Timothy A. ; et al. | 2013-08-08 |
| Eccentricity Tolerant Valve Stem Seal Assembly App 20130015625 - Hegemier; Timothy A. ; et al. | 2013-01-17 |
| Oil metering valve seal Grant 7,438,036 - Hesher , et al. October 21, 2 | 2008-10-21 |
| Oil metering valve seal App 20060169942 - Hesher; Eric W. ; et al. | 2006-08-03 |
| Valve stem seal assembly with locator system Grant 6,647,943 - Leimer , et al. November 18, 2 | 2003-11-18 |
| Valve stem seal assembly with locator system App 20030024497 - Leimer, Mark A. ; et al. | 2003-02-06 |
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