Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6408957 | Sealed bearing roller cone bit having anti-plugging device | Robert H. Slaughter, Jr., Fakhroldin Mohammad Jadbabaei, Peter Thomas Cariveau, Roger Didericksen | 2002-06-25 |