Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11181216 | Pressure-energized probe seal for female hydraulic coupling member | — | 2021-11-23 |
| 11105435 | Subsea bop control system with dual-action check valve | Timothy Goggans, Frank Harold Hollister | 2021-08-31 |
| 11085545 | Pilot-actuated spool valve having rod retainer | Max Stetzer, Frank Harold Hollister, Chris Roy, Stephen L. Wells | 2021-08-10 |