Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4915579 | Pump sealing apparatus | John Whittier, G. Michael Wilfley | 1990-04-10 |
| 4634344 | Multi-element centrifugal pump impellers with protective covering against corrosion and/or abrasion | Henry T. Choquette | 1987-01-06 |