Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4791998 | Method of avoiding stuck drilling equipment | W. Brent Hempkins, Roger H. Kingsborough, Wesley E. Lohec | 1988-12-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4791998 | Method of avoiding stuck drilling equipment | W. Brent Hempkins, Roger H. Kingsborough, Wesley E. Lohec | 1988-12-20 |