Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5431412 | Sealing element | Paul Andrew Reinhardt, William Mark Richards | 1995-07-11 |
| 5398754 | Retrievable whipstock anchor assembly | — | 1995-03-21 |
| 5188183 | Method and apparatus for controlling the flow of well bore fluids | Mark E. Hopmann, Steve Jennings | 1993-02-23 |