Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8061935 | Rock bolt and an anchoring device | Steven Weaver, John Horsch, Matthew Kenny | 2011-11-22 |
| 7896580 | Self drilling rock bolt | Steven Weaver, John Horsch, Matthew Kenny | 2011-03-01 |