Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9751089 | Wear-resistant cutting teeth, cutting heads and related apparatus | Chris Pfoltner, Clint Weinberg, Steve Van Zee | 2017-09-05 |
| 9611698 | Hole opener bearing arrangement | Randy R. Runquist | 2017-04-04 |