Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11767715 | Underreamer | Roy D. Estes | 2023-09-26 |
| 8997898 | Drilling equipment and attachment means for the same | — | 2015-04-07 |
| 7661489 | Roller reamer | — | 2010-02-16 |
| 7458430 | Attachment means for drilling equipment | — | 2008-12-02 |
| 4858707 | Convex shaped diamond cutting elements | Kenneth W. Jones | 1989-08-22 |
| 4751972 | Revolving cutters for rock bits | Kenneth W. Jones | 1988-06-21 |