Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8801337 | Method of using a dome headed roof bolt | Matthew S. Slatter | 2014-08-12 |
| 7802943 | Low profile mine roof support | Alexander I. Wallstein | 2010-09-28 |
| 7780377 | Friction stabilizers and roof bolt head markings | Steven E. Brady, Matthew S. Slatter | 2010-08-24 |
| 7717650 | Roof truss shoe having wedge retention device and method of using the same | Tony Reschke, Raymond Brandon | 2010-05-18 |
| 7712838 | Ground support insertion tool | Matthew S. Slatter, Phillip E. Gramich, Jr. | 2010-05-11 |
| 7690868 | Cable coupler having retained wedges | Alexander I. Wallstein, Raymond Brandon, Tony Reschke | 2010-04-06 |
| 7588394 | Low profile mine roof support | Matthew S. Slatter | 2009-09-15 |
| 7118310 | Truss shoe for a mine roof and method | Alexander I. Wallstein | 2006-10-10 |
| 6881015 | Wedge barrel for a mine roof cable bolt | Alexander I. Wallstein, Raymond Brandon, Steven E. Brady | 2005-04-19 |