Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6705617 | Hydrodynamic seal and method of making the same | Edward W. Mellet, David M. Toth | 2004-03-16 |
| 5692757 | Bidirectional shaft seal with intersecting spiral grooves | — | 1997-12-02 |