Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10047584 | Lower mill spaced cutting ring structure | Calvin J. Stowe, II, Andrew D. Ponder | 2018-08-14 |
| 9945198 | Casing exit mills and apparatus and methods of use | Calvin J. Stowe, II | 2018-04-17 |
| 9416612 | Lower mill spaced cutting ring structure | Calvin J. Stowe, II, Andrew D. Ponder | 2016-08-16 |