Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136861 | Mechanisms for transferring hydraulic regulation from a primary safety valve to a secondary safety valve | Jimmie R. Williamson, Jr., James Dan Vick, Jr., Robert Arthur Rademaker | 2021-10-05 |