Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9366089 | Cutting element attached to downhole fixed bladed bit at a positive rake angle | David R. Hall, Ronald B. Crockett, Francis Leany, Casey Webb | 2016-06-14 |
| 9316061 | High impact resistant degradation element | David R. Hall, Francis Leany | 2016-04-19 |