Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6176318 | Actuator apparatus and method for downhole completion tools | Albert Augustus Mullins, Richard M. Wilde | 2001-01-23 |
| 4944351 | Downhole safety valve for subterranean well and method | Erik P. Eriksen, Michael A. Carmody | 1990-07-31 |