Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11480031 | Pressure control device with safety locking mechanism | Bobby Gallagher, Steven Angstmann | 2022-10-25 |
| 11414950 | Iris valve type well annular pressure control device and method | Bobby Gallagher, Steven Angstmann | 2022-08-16 |