Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617921 | Over-pressured well fracturing with surface reservoir and actuator system | Joseph H. Schmidt, 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, Donald F. Scheve +3 more | 1997-03-25 |