Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6354387 | Nozzle orientation for roller cone rock bit | Leroy W. Ledgerwood, III, Brian C. Wiesner, Sean K. Berzas, Brian Baker | 2002-03-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6354387 | Nozzle orientation for roller cone rock bit | Leroy W. Ledgerwood, III, Brian C. Wiesner, Sean K. Berzas, Brian Baker | 2002-03-12 |