Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5209105 | Method and apparatus for externally and internally testing for leaks in connections between tubular members | Brian B. Hasha, Bruce B. Hasha | 1993-05-11 |
| 4926680 | Method and apparatus for externally and internally testing for leaks in connections between tubular members | Brian B. Hasha, Bruce B. Hasha | 1990-05-22 |
| 4407171 | Apparatus and method for hydrostatically testing sealing face surfaces of tubular joints | Brian B. Hasha | 1983-10-04 |