Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11940053 | Shutoff seal assemblies and related valve assemblies and methods | — | 2024-03-26 |
| 11428328 | Shutoff seal for high temperature pressure balance valve and related methods | — | 2022-08-30 |
| 9222600 | Pressure-balanced control valves | Fred Cain | 2015-12-29 |
| 8714521 | Butterfly valve, valve seat and valve seat retainer | Michael P. Nelson | 2014-05-06 |
| 6416033 | Air over hydraulics actuator system | Samuel Holley McKell, Craig Grant Haroldsen, Robert E. Gooch | 2002-07-09 |