Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11156054 | Annular blowout preventer | John L. Alsup, Bolie C. Williams, III, J. GILBERT NANCE, THOR ARNE HAVERSTAD | 2021-10-26 |
| 11118419 | Wellbore control device | — | 2021-09-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11156054 | Annular blowout preventer | John L. Alsup, Bolie C. Williams, III, J. GILBERT NANCE, THOR ARNE HAVERSTAD | 2021-10-26 |
| 11118419 | Wellbore control device | — | 2021-09-14 |