Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12366140 | Controlled opening of a valve in an apparatus for preventing downhole surges | — | 2025-07-22 |
| 7234546 | Drilling and cementing casing system | Ray Vincent, Frank Koehrmann, George Givens, Edward T. Wood, Friedhelm Makohl +1 more | 2007-06-26 |
| 6634428 | Delayed opening ball seat | George Givens | 2003-10-21 |
| 6241023 | Unlocking packer setting method and device | David Hirth | 2001-06-05 |
| 5477925 | Method for multi-lateral completion and cementing the juncture with lateral wellbores | Kevin O. Trahan, Rodney D. Bennett, John L. Baugh | 1995-12-26 |