Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10975862 | Valve adapter connection assembly | Roy Ronald Pelfrey, Mark A. Michnevitz, Jake Buford | 2021-04-13 |
| 10119636 | Trapezoidal thread form having a wear indicator and high pressure connection fitting comprising same | Douglas J. Scheffler | 2018-11-06 |
| 10066619 | Valve adapter connection assembly | Roy Ronald Pelfrey, Mark A. Michnevitz, Jake Buford | 2018-09-04 |
| 9581228 | Cam apparatus for use with valves | Ernesto Vasquez | 2017-02-28 |
| 9360131 | Actuator adapter plate | Douglas J. Scheffler, Roy Ronald Pelfrey, Jeffrey Sexton | 2016-06-07 |
| 9334974 | Pilot operated relief valve with dual pilot regulators | Juan M. Diaz, Bryan J. Steger | 2016-05-10 |
| 9213339 | Fluid regulator having improved flow stability | Douglas J. Scheffler | 2015-12-15 |