Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7284657 | Modular conveyor belt with unique link capture means | Larry P. Ulsh | 2007-10-23 |
| 6615979 | Conveyor belt and method of assembly | Joy B. Henderson | 2003-09-09 |
| 6279726 | Self-cleaning drive mechanism for driving conveyor belts | Joseph Allen Bowen | 2001-08-28 |
| 6195868 | Conveyor belt with improved rod to link attachment | William F. Funkhouser, Marshall L. Veach | 2001-03-06 |
| 6129205 | Variable loop count conveyor belt | Erica D. Ergenbright | 2000-10-10 |
| 6070715 | Conveyor belt with improved rod to link attachment | William F. Funkhouser, Marshall L. Veach | 2000-06-06 |
| 5954188 | Conveyor belt | William F. Funkhouser | 1999-09-21 |
| 5393937 | Vehicle control system | Michael R. Walker | 1995-02-28 |
| 5387073 | Shuttlecar unloading device | Michael R. Walker | 1995-02-07 |
| 5332247 | Articulated joint | — | 1994-07-26 |
| 5323666 | Transmission system with parallel input and concentric outputs | Michael R. Long | 1994-06-28 |
| 5301787 | Articulated shuttlecar | Michael R. Long | 1994-04-12 |
| 5261617 | Cable reeler | Michael R. Long | 1993-11-16 |
| 5253727 | Steering mechanism for an articulated vehicle | Michael R. Long | 1993-10-19 |
| 5244072 | Articulation joint | Michael R. Long | 1993-09-14 |
| 4746170 | Mining machinery | Hugh Hazen Wilson, IV | 1988-05-24 |
| 4285546 | Tunnel profile control | — | 1981-08-25 |