Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6364037 | Apparatus to actuate a downhole tool | David J. Brunnert, Thurman B. Carter, David M. Haugen, Gary Duron Ingram | 2002-04-02 |
| 5704838 | Down-hole motor universal joint | — | 1998-01-06 |