Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9933089 | Decompression insert for rotary valve and rotary valve provided with such an insert | — | 2018-04-03 |
| 8322373 | Axial drag valve with internal sleeve actuator | — | 2012-12-04 |
| 8312893 | Axial drag valve with internal hub actuator | Samuel C. Sturtevant, Sina Alikhani, Daniel McMillen | 2012-11-20 |
| 7011109 | Drag ball valve | Duc Thanh Tran, Raymond R. Newton, Paul Smirl, Tina Benac | 2006-03-14 |
| 5937901 | Rotary noise attenuating valve | — | 1999-08-17 |
| 5799695 | Flow regulating valve of the ball or plug type | — | 1998-09-01 |
| 5772178 | Rotary noise attenuating valve | — | 1998-06-30 |
| 5509446 | Ball valve or plug valve provided with an insert | — | 1996-04-23 |
| 5480123 | Butterfly type control valve | — | 1996-01-02 |
| 4610273 | Attenuated rotating valve | — | 1986-09-09 |
| 4530375 | Attenuating rotating valve | — | 1985-07-23 |
| 4479510 | Attenuating rotating valve having varying configurations | — | 1984-10-30 |
| 4335744 | Quiet safety relief valve | — | 1982-06-22 |
| 4295493 | Drag ball valve including variable pressure reducing means | — | 1981-10-20 |
| 4271866 | Drag ball valve including variable pressure reducing means | — | 1981-06-09 |