Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12240047 | Quick-release coupling for drilling and related methods | Timothy D. Burgess, William A. Burgess, Lyle Abraham Crum | 2025-03-04 |
| 11213900 | Quick-release coupling for drilling and related methods | Timothy D. Burgess, William A. Burgess, Lyle Abraham Crum | 2022-01-04 |
| 8881847 | Dust collecting device for a roof tool | Chad A. Swope | 2014-11-11 |
| 8807248 | Cutting insert for a roof drill bit | Seth Daniel Colvin, Chad A. Swope | 2014-08-19 |
| 8002054 | Roof drill bit, roof drill bit body and hard cutting insert for roof drill bit | Chad A. Swope, Kris Strothmann, Tod D. Hill | 2011-08-23 |
| 7708087 | Countersink roof bit drill and method for using the same | Brandon S. Stables, John G. Oldsen, Donald E. Keller, David Rife, John C. Stankus +1 more | 2010-05-04 |
| 7207400 | Coupler and roof drill bit assembly using such coupler | Joseph C. Boggs | 2007-04-24 |
| 6945340 | Roof bit and insert assembly | Phillip W. Haga, Ted R. Massa | 2005-09-20 |
| 6915867 | Earth penetrating rotary drill bit with helical ports | — | 2005-07-12 |
| 6886645 | Liquid seal for wet roof bit | Phillip W. Haga | 2005-05-03 |
| 6860344 | Monolithic roof cutting bit insert | Phillip W. Haga | 2005-03-01 |
| 6684968 | Roof bit body and insert assembly | Phillip W. Haga, Ted R. Massa | 2004-02-03 |
| 6595305 | Drill bit, hard member, and bit body | Curnie A. Dunn, Phillip W. Haga, Ted R. Massa, Gary Condon, Stephen T. Belsheim +1 more | 2003-07-22 |
| 6244665 | Cutting toolholder with recessed groove for cutting tool removal | Phillip W. Haga, Randall W. Oianen | 2001-06-12 |
| 5529384 | Bit holder block and cutter bit therefor | Randall W. Ojanen | 1996-06-25 |