Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8079648 | Cold-formed cutting tool | William P. Prezlock | 2011-12-20 |
| 8002054 | Roof drill bit, roof drill bit body and hard cutting insert for roof drill bit | Douglas E. Bise, Kris Strothmann, Tod D. Hill | 2011-08-23 |