Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10364610 | Durable rock bit for blast hole drilling | Tony Jack Beavers | 2019-07-30 |
| 9562392 | Field removable choke for mounting in the piston of a rotary percussion tool | Anthony Plana | 2017-02-07 |
| 9488007 | Wear resistant plates on a leading transitional surface of the leg for a rotary cone drill bit | David Michel Harrington, Cesar A. Fierro | 2016-11-08 |
| 9260922 | Roller cone drill bit with cuttings evacuator | David Michel Harrington | 2016-02-16 |