Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9938793 | Spherical blow out preventer annular seal | Mehdi Hashemian, Andreas Hagen, Bernd Altmueller | 2018-04-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9938793 | Spherical blow out preventer annular seal | Mehdi Hashemian, Andreas Hagen, Bernd Altmueller | 2018-04-10 |