Issued Patents 2016
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9353575 | Hybrid drill bits having increased drilling efficiency | Robert J. Buske, Rudolf Carl Pessier, Don Q. Nguyen, Karlos B. Cepeda, Michael S. Damschen +5 more | 2016-05-31 |
| 9316055 | Drill bit with a dynamic metal seal | Chih Lin, Aaron J. Dick, Jon David Schroder, Alejandro Flores, Robert Bradshaw | 2016-04-19 |
| 9249629 | Enhanced backup ring edge features for metal face seal in roller cone drill bits | Chih Lin, Terry J. Koltermann, Gregory L. Ricks | 2016-02-02 |