Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5785135 | Earth-boring bit having cutter with replaceable kerf ring with contoured inserts | — | 1998-07-28 |
| 5487435 | Mounting system for raise and shaft cutters | Steven R. Brooke | 1996-01-30 |