Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11118409 | Spring compensated lubrication system for sealed bearing earth boring bits | Thomas G. Gault | 2021-09-14 |
| 4441566 | Drill bit with dispersed cutter inserts | Rudolf Carl Pessier, Rodolfo M. Ippolito | 1984-04-10 |