Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5601294 | Head gasket | — | 1997-02-11 |
| 5267740 | Metal head gasket with integrated sealing aids | — | 1993-12-07 |
| 5050893 | Valve stem oil shield | — | 1991-09-24 |
| 4811960 | Fixed valve stem oil seal | Brian F. Rericha | 1989-03-14 |
| 4811703 | Valve stem seal | Brian F. Rericha | 1989-03-14 |
| 4799691 | Rear crankshaft seal housing with integrally bonded seal | Brian F. Rericha | 1989-01-24 |
| 4789166 | Rotary shaft wave seal | Brian F. Rericha | 1988-12-06 |
| 4773363 | Fixed valve stem oil deflector | — | 1988-09-27 |
| 4763618 | Valve stem oil deflector | — | 1988-08-16 |
| 4730583 | Valve stem oil deflector | — | 1988-03-15 |