Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8028770 | Conformal bearing for rock drill bit | Aaron J. Dick, Terry J. Koltermann, Anton F. Zahradnik, Daniel E. Scott, Don Q. Nguyen +4 more | 2011-10-04 |
| 7896109 | Spacer ring for elastomeric seal | — | 2011-03-01 |
| 7861805 | Conformal bearing for rock drill bit | Aaron J. Dick, Terry J. Kolterman, Anton F. Zahradnik, Dan E. Scott, Don Q. Nguyen +4 more | 2011-01-04 |