Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11261978 | Annulus safety valve system and method | Jason M. Pivowar, Delbert Edwin Vanderford, Moyosore Terebo | 2022-03-01 |
| 9885220 | Hanger running tool | Dennis P. Nguyen | 2018-02-06 |
| 9822601 | System for setting and retrieving a seal assembly | Dennis P. Nguyen, Frank Z. Pei | 2017-11-21 |
| 9677367 | Non-rotating method and system for isolating wellhead pressure | Dennis P. Nguyen | 2017-06-13 |