Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4791998 | Method of avoiding stuck drilling equipment | W. Brent Hempkins, Roger H. Kingsborough, Conroy J. Nini | 1988-12-20 | $70,864,000 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4791998 | Method of avoiding stuck drilling equipment | W. Brent Hempkins, Roger H. Kingsborough, Conroy J. Nini | 1988-12-20 | $70,864,000 |