Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10066451 | Drill rod clamping system and methods of using same | David Robert Ritter, Anthony Charles William Markham | 2018-09-04 |
| 10047576 | Drill rod handling system for moving drill rods to and from an operative position | Anthony Charles William Markham | 2018-08-14 |