Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5685374 | Well completions in weakly consolidated formations | Frank E. Bergren, Michael L. Bill, Donald F. Scheve | 1997-11-11 |
| 5617921 | Over-pressured well fracturing with surface reservoir and actuator system | Keith R. Ferguson, Andrew Bond, Roger Keese | 1997-04-08 |
| 5613557 | Apparatus and method for sealing perforated well casing | Curtis G. Blount, Robert A. Benham, Jerry Brock, John A. Emerson, Keith R. Ferguson +3 more | 1997-03-25 |