Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10739223 | Hydrostatic pressure test method and apparatus | Clifford Lee Hilpert, Jeffrey Hilpert, Lewis J. Dutel | 2020-08-11 |
| 10656063 | Pressure testing method and apparatus | Paul Russell Daley, Timothy O. Wiemers, Lewis J. Dutel | 2020-05-19 |
| 10161824 | Hydrostatic pressure test method and apparatus | Clifford Lee Hilpert, Jeffrey Hilpert, Lewis J. Dutel | 2018-12-25 |