Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4558597 | Surface tension screen failure detection method and apparatus | James R. Fenwick | 1985-12-17 |
| 4513906 | Liquid tank weld cavitation protection | James R. Fenwick | 1985-04-30 |