Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5318130 | Selective downhole operating system and method | — | 1994-06-07 |
| 5316087 | Pyrotechnic charge powered operating system for downhole tools | David S. Wesson, Roger L. Schultz | 1994-05-31 |