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, Wesley E. Lohec, Conroy J. Nini | 1988-12-20 |
RK
Roger H. Kingsborough
Overall (All Time): #3,964,935 of 4,157,543Top 100%
1
Patents All Time