Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6609735 | Threaded and coupled connection for improved fatigue resistance | M. Edward Evans | 2003-08-26 |
| 6581980 | Threaded connection with high compressive rating | Merle E. Evans, Darrell Scott Costa, Reji Eason | 2003-06-24 |
| 6550821 | Threaded connection | M. Edward Evans | 2003-04-22 |