Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8985638 | Stacked washer slip joint seal | Ernest Oxenknecht, Frank Popielas, Kevin Shaver | 2015-03-24 |
| 8128098 | Multi-layered gasket | — | 2012-03-06 |
| 6453892 | Constrained layer damped steel baffle | Tom Staab, Brent R. Boldt | 2002-09-24 |
| 6092810 | Single layer head gasket with integral stopper | — | 2000-07-25 |
| 6089572 | Three-layer gasket with primary and secondary sealing element | — | 2000-07-18 |
| 5727795 | Single layer or multi-layer metal cylinder head gasket and method of making the same | — | 1998-03-17 |
| 5551709 | Multiple layer cylinder head gasket with a wire ring | — | 1996-09-03 |