Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9605672 | Reciprocating-rod seal | Lee L. Harvey, Gary W. Schroeder | 2017-03-28 |
| 6290235 | Sealing system for a reciprocating shaft | — | 2001-09-18 |
| 5472216 | Seal ring for valve stem | Vernon R. Bolinder | 1995-12-05 |
| 4328972 | Seal ring and method of manufacture | Ralph Peterson | 1982-05-11 |