Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619412 | Protected lubricant reservoir for sealed earth boring drill bit | Peter Thomas Cariveau, Kirk A. Norris, Roger Didericksen, William M. Conn | 2003-09-16 |
| 6598689 | Roller cone for drill bit having improved resistance to fatigue cracking | Fakhroldin Mohammad Jadbabaei | 2003-07-29 |