Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10502001 | Earth-boring tools carrying formation-engaging structures | Juan Miguel Bilen, Steven Craig Russell, Kenneth R. Evans | 2019-12-10 |
| 10316589 | Hybrid drill bit and design method | Anton F. Zahradnik, Rudolf Carl Pessier, Matthew J. Meiners, Karlos B. Cepeda, Michael S. Damschen +3 more | 2019-06-11 |
| 10190366 | Hybrid drill bits having increased drilling efficiency | Anton F. Zahradnik, Robert J. Buske, Rudolf Carl Pessier, Karlos B. Cepeda, Michael S. Damschen +5 more | 2019-01-29 |