Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668471 | Towable earth digging apparatus | Paul Cook | 2003-12-30 |
| 4759239 | Wrench assembly for a top drive sub | William R. Hamilton | 1988-07-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668471 | Towable earth digging apparatus | Paul Cook | 2003-12-30 |
| 4759239 | Wrench assembly for a top drive sub | William R. Hamilton | 1988-07-26 |