Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7802943 | Low profile mine roof support | Roland Walker | 2010-09-28 |
| 7690868 | Cable coupler having retained wedges | Raymond Brandon, Tony Reschke, Roland Walker | 2010-04-06 |
| 7384216 | Cable coupler having retained wedges | Raymond Brandon | 2008-06-10 |
| 7118310 | Truss shoe for a mine roof and method | Roland Walker | 2006-10-10 |
| 7066688 | Wedge barrel for a twin cable mine roof bolt | Richard Pope | 2006-06-27 |
| 6881015 | Wedge barrel for a mine roof cable bolt | Raymond Brandon, Roland Walker, Steven E. Brady | 2005-04-19 |