Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9500297 | Shut-off trim including spring loaded check valve | — | 2016-11-22 |
| 9500298 | Shut-off trim including spring loaded check valve | — | 2016-11-22 |
| 9328846 | Shut-off trim including spring loaded check valve | — | 2016-05-03 |
| 8662110 | Shut-off trim including spring loaded check valve | — | 2014-03-04 |
| 8312893 | Axial drag valve with internal hub actuator | Roger Bey, Samuel C. Sturtevant, Daniel McMillen | 2012-11-20 |