Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10161232 | Lift valve with bellow hydraulic protection and chatter reduction | Aaron Ranson | 2018-12-25 |
| 9988886 | Gas lift valve with mixed bellows and floating constant volume fluid chamber | — | 2018-06-05 |