Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10323461 | Tri cone drill bit | — | 2019-06-18 |
| 5927439 | Sub-assembly for lubricating rock drill bit | — | 1999-07-27 |
| 5490571 | Sub-assembly for dust suppression in rock drilling | Christopher R. Carrall | 1996-02-13 |