Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4597067 | Borehole monitoring device and method | Rhea W. Bockhorst, David A. Christopher | 1986-06-24 |
| 4295536 | Pressure seal for pumping instruments through drill rod | Emrys Jones | 1981-10-20 |
| 4247312 | Drilling fluid circulation system | Pramod C. Thakur, Charles E. Mason, Emrys Jones | 1981-01-27 |