Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4470469 | Swivel head for drilling and mining tool | James J. Nolan | 1984-09-11 |
| 4440450 | Borehole mining valve actuation | — | 1984-04-03 |
| 4348058 | Method and apparatus for slurry borehole mining | James J. Nolan | 1982-09-07 |
| 4344491 | Apparatus for actuating downhole flow control valves | James J. Nolan | 1982-08-17 |