Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10364620 | Drill rod clamping system and methods of using same | David Robert Ritter, Anthony Charles William Markham | 2019-07-30 |
| 10280697 | Drill rod alignment device and systems and methods of using same | David Robert Ritter, Anthony Charles William Markham | 2019-05-07 |