Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9981406 | Drill bit | Thomas R. Kaye, Jr., David N. Johnson | 2018-05-29 |
| 9284787 | Drill bit and cutting head for drill bit | Andreas Hammer, Steve Brocket, Christoph Gastinger | 2016-03-15 |