Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7730954 | Hydraulic control and actuation system for downhole tools | Roger L. Schultz, Melissa Allin, Paul D. Ringgenberg, Vincent P. Zeller, Adam D. Wright +1 more | 2010-06-08 |
| 7201230 | Hydraulic control and actuation system for downhole tools | Roger L. Schultz, Melissa Allin, Paul D. Ringgenberg, Vincent P. Zeller, Adam D. Wright +1 more | 2007-04-10 |