Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6564870 | Method and apparatus for completing wells with expanding packers for casing annulus formation isolation | Tommy Frank Grigsby | 2003-05-20 |
| 6543545 | Expandable sand control device and specialized completion system and method | Jiten Chatterji, R. Ashley Donaldson, Ronald Glen Dusterhoft, Tommy Frank Grigsby, Travis Hailey +4 more | 2003-04-08 |