Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10072539 | Valve stem seal assembly with a symmetrical retainer | Eric Hesher | 2018-09-11 |
| 9943935 | Method of making a valve stem seal with formable retainer tabs | — | 2018-04-17 |
| 6764063 | Valve seal assembly with bottom flange seal | Timothy A. Hegemier | 2004-07-20 |
| 6752398 | Valve stem seal assembly | — | 2004-06-22 |
| 6516769 | Valve seal assembly with dual finger retainer system | — | 2003-02-11 |
| 6269787 | Rocker cover gasket assembly with integral valve stem seals | — | 2001-08-07 |
| 6205969 | Multi-seal retainer assembly and method for making the same | — | 2001-03-27 |
| 6148783 | Valve seal body including encapsulated metal spring seat and method for making the same | Eric Hesher | 2000-11-21 |