Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6883623 | Earth boring apparatus and method offering improved gage trimmer protection | Ronny D. McCormick, Mumtaz Ball, Mark E. Anderson, Mark W. Dykstra, Michael L. Doster | 2005-04-26 |
| 6843333 | Impregnated rotary drag bit | Volker Richert, Van Jordan Brackin, Douglas J. Bobrosky, M. MacLean Price | 2005-01-18 |