Issued Patents All Time
Showing 126–133 of 133 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4492359 | Valve assembly | — | 1985-01-08 |
| 4488740 | Breech block hanger support | Herman O. Henderson, Jr., John H. Fowler, Arthur G. Ahlstone | 1984-12-18 |
| 4478292 | Pipe gripping apparatus with interlocking plates | Gerard J-M. Lux, Jean-Paul Ribeyre | 1984-10-23 |
| 4467996 | Valve apparatus | — | 1984-08-28 |
| 4401164 | In situ method and apparatus for inspecting and repairing subsea wellheads | — | 1983-08-30 |
| 4269277 | Power slip assembly | — | 1981-05-26 |
| 4265304 | Coiled tubing apparatus | — | 1981-05-05 |
| 4201238 | Emergency override with hermetic seal | — | 1980-05-06 |