Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6318470 | Recirculatable ball-drop release device for lateral oilwell drilling applications | James W. Estep, Albert C. Odell, II | 2001-11-20 |
| 4857006 | Quick change electrical coupling | Eugene J. Linyeav | 1989-08-15 |