Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6543551 | Pipe handling device | Darrel W. Sparks, Richard W. McEwen, Cody L. Sewell, Ronald A. Frazier, James E. Franklin +2 more | 2003-04-08 |
| RE37975 | Directional boring head with blade assembly | Brent G. Stephenson, Cody L. Sewell, Richard P. Dunn | 2003-02-04 |