Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10465473 | Annular safety valve pull through device | Joseph Daniel Filbrandt | 2019-11-05 |
| 10174582 | Wellbore annular safety valve and method | Eirik Windegaard, Bjoern Staale Varnes, Niek Dijkstra, Graham Watson, Emmanuel Balster +2 more | 2019-01-08 |