Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7913778 | Rock bit with hydraulic configuration | James L. Larsen, Gary R. Portwood, Riccardo Gronchi | 2011-03-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7913778 | Rock bit with hydraulic configuration | James L. Larsen, Gary R. Portwood, Riccardo Gronchi | 2011-03-29 |