Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11555371 | Valve having protected, moveable seal and seal assembly therefor | Matthew Albert Franchek, Seyed Mohammad Parvasi | 2023-01-17 |
| 10132133 | Method of closing a blowout preventer seal based on seal erosion | Frank Benjamin Springett, Matthew Albert Franchek | 2018-11-20 |
| 9249637 | Dual gradient drilling system | Frank Benjamin Springett, Svein Ove Aanesland | 2016-02-02 |