Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4392546 | Suspended operator station | Ross K. Brown, Raymond D. Thompson, Terrill Wayne Woods, James M. Conner, William E. Crookes +1 more | 1983-07-12 |
| 4344356 | Air distribution system | Robert H. Casterton, Larry Phippen | 1982-08-17 |