Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D326237 | Rotating warning beacon | Bradley D. Gale | 1992-05-19 |
| 4716974 | Method and apparatus for coring with an in situ core barrel sponge | Steven R. Radford | 1988-01-05 |
| 4664205 | Hydraulic inner barrel in a drill string coring tool | Kelly Knighton, Steven R. Radford | 1987-05-12 |
| 4606416 | Self activating, positively driven concealed core catcher | Kelly Knighton, Steven R. Radford | 1986-08-19 |
| 4605075 | Shrouded core catcher | Steven R. Radford | 1986-08-12 |
| 4603749 | Apparatus for downward displacement of an inner tube within a coring barrel | Steven R. Radford | 1986-08-05 |