Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10961817 | Electrohydraulic quick union for subsea landing string | Stevan Jaye Sparks, Kenneth L. Schwendemann, Steven B. Scheibel, Benjamin Thomas Derryberry, Darrin N. Towers | 2021-03-30 |
| 10309194 | Downhole fluid valve | Scott Luke Miller, Paul D. Ringgenberg, Vince Zeller | 2019-06-04 |
| 9745836 | Time delayed secondary retention mechanism for safety joint in a wellbore | Reid Elliott Zevenbergen, Paul D. Ringgenberg | 2017-08-29 |
| 9719318 | High-temperature, high-pressure, fluid-tight seal using a series of annular rings | Mark Strumpell | 2017-08-01 |