Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10378288 | Downhole drill bit incorporating cutting elements of different geometries | David R. Hall, John Bailey | 2019-08-13 |
| 10174561 | Polycrystalline diamond cutting elements with transition zones and downhole cutting tools incorporating the same | David R. Hall, Neil Cannon, Dwain Norris, Madapusi K. Keshavan | 2019-01-08 |