Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6651757 | Toughness optimized insert for rock and hammer bits | Dan Belnap, Nathan R. Anderson, Sujian Huang | 2003-11-25 |
| 6571887 | Directional flow nozzle retention body | Quan Nguyen, James L. Larsen, Chris E. Cawthorne | 2003-06-03 |