Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10415715 | Subsea BOP control system with dual-action check valve | Robert E. Smith, III, Frank Harold Hollister | 2019-09-17 |
| 10174857 | Subsea BOP control system with dual-action check valve | Robert E. Smith, III, Frank Harold Hollister | 2019-01-08 |