Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5725060 | Mill starting device and method | Curtis G. Blount, Lamar L. Gantt, David D. Hearn | 1998-03-10 |
| 5531270 | Downhole flow control in multiple wells | Paul Fletcher | 1996-07-02 |