Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6962434 | Liner wear detection | Robert O. Martin, Lonnie Hewell | 2005-11-08 |
| 6752858 | Circumferential air knife and applications | Harry E. Flynn, Leslie Crowder, Johnny Perkins | 2004-06-22 |