Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10533396 | Ball valve and remotely releasable connector for drill string | Michael Jenkins | 2020-01-14 |
| 6453997 | Hydraulically driven fishing jars | Charles A. Roper | 2002-09-24 |
| 6308779 | Hydraulically driven fishing jars | Charles A. Roper | 2001-10-30 |