Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11578561 | Stinger for actuating surface-controlled subsurface safety valve | Glenn A. Bahr | 2023-02-14 |
| 11085269 | Stinger for communicating fluid line with downhole tool | Glenn A. Bahr | 2021-08-10 |
| 8893799 | Subsurface safety valve including safe additive injection | — | 2014-11-25 |
| 8776889 | Irregularly shaped flapper closure and sealing surfaces | Roddie R. Smith | 2014-07-15 |