Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10704389 | System for re-tensioning mine roof channels | Ben Mirabile | 2020-07-07 |
| 7708087 | Countersink roof bit drill and method for using the same | Douglas E. Bise, John G. Oldsen, Donald E. Keller, David Rife, John C. Stankus +1 more | 2010-05-04 |