Issued Patents 2011
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8028770 | Conformal bearing for rock drill bit | Aaron J. Dick, Chih Lin, Terry J. Koltermann, Daniel E. Scott, Don Q. Nguyen +4 more | 2011-10-04 |
| 7997354 | Expandable reamers for earth-boring applications and methods of using the same | Steven R. Radford, Scott Shiquiang Shu, Les T. Shale, Mark E. Morris, Mark R. Kizziar | 2011-08-16 |
| 7975779 | Threaded cone retention system for roller cone bits | Don Q. Nguyen, Eric C. Sullivan, Terry J. Koltermann, Aaron J. Dick, Scott Shiqiang Shu | 2011-07-12 |
| 7900717 | Expandable reamers for earth boring applications | Steven R. Radford, Scott Shiquiang Shu, J. Lindley Baugh | 2011-03-08 |
| 7861805 | Conformal bearing for rock drill bit | Aaron J. Dick, Chih Lin, Terry J. Kolterman, Dan E. Scott, Don Q. Nguyen +4 more | 2011-01-04 |
| 7861806 | Shank structure for rotary drill bits | Eric C. Sullivan, R. Scot Smith, Daniel E. Ruff, Danielle V. Roberts, Alan J. Massey | 2011-01-04 |