Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10472929 | Tubular isolation valve resettable lock open mechanism | John Burris | 2019-11-12 |
| 10371284 | Local position indicator for subsea isolation valve having no external position indication | Michael L. Hair, Leonard Medill | 2019-08-06 |