Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840346 | Apparatus for sealing a well blowout | Neil E. Rogen | 1989-06-20 |
| 4619320 | Subsurface well safety valve and control system | Neil E. Rogen | 1986-10-28 |
| 4515213 | Packing tool apparatus for sealing well bores | Neil E. Rogen | 1985-05-07 |