Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5525047 | Sealing system for an unloader | Richard E. Shaw | 1996-06-11 |
| 5005805 | Lift-turn valve and actuator assembly | Gene Morris, Deepak Patel | 1991-04-09 |
| 4241895 | Annular resilient metal valve seat | William W. Broadway | 1980-12-30 |