Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8246006 | Articulating guide seal | — | 2012-08-21 |
| 7900932 | Valve stem sealing assembly | Mark A. Stamback | 2011-03-08 |
| 7316386 | Valve stem seal assembly | — | 2008-01-08 |
| 7025030 | Valve stem seal assembly with changeable cap | — | 2006-04-11 |
| 6830025 | Dual spring valve stem seal module | — | 2004-12-14 |
| 6761141 | Valve stem seal with built-in sprue | — | 2004-07-13 |
| 6679502 | Valve stem seal assembly with valve guide retainer | — | 2004-01-20 |
| 6659469 | Molded rubber jacket with fabric reinforcement for valve stem seal | — | 2003-12-09 |
| 6647943 | Valve stem seal assembly with locator system | Mark A. Stamback, Robert W. Lehmann | 2003-11-18 |
| 6609700 | Valve seal assembly with spring finger retainer | — | 2003-08-26 |
| 6571761 | Valve stem seal assembly with integral bottom seal | — | 2003-06-03 |
| 6527275 | Molded rubber jacket with fabric reinforcement for valve stem seal | — | 2003-03-04 |
| 6415487 | Service tool for removal of valve seal assembly | — | 2002-07-09 |
| 6412467 | Valve seal assembly module with spring and retainers | — | 2002-07-02 |