Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6550547 | System and method for automatically controlling a pipe handling system for a horizontal boring machine | David R. Payne, Kelvin P. Self, J. Kevin Wilda, David A. Rorabaugh | 2003-04-22 |
| 6543551 | Pipe handling device | Darrel W. Sparks, Richard W. McEwen, Arthur D. Deken, Ronald A. Frazier, James E. Franklin +2 more | 2003-04-08 |
| RE37975 | Directional boring head with blade assembly | Brent G. Stephenson, Arthur D. Deken, Richard P. Dunn | 2003-02-04 |