Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6739417 | Superabrasive cutters and drill bits so equipped | Redd H. Smith, Craig H. Cooley, Marcus Skeem | 2004-05-25 |
| 6684966 | PCD face seal for earth-boring bit | Chih Lin, Terry J. Koltermann | 2004-02-03 |