Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11021913 | Direct casting of ultrahard insert in bit body | Yahua Bao | 2021-06-01 |
| 11008815 | Cutting elements with impact resistant diamond body | Yi Fang, Michael David France, David P. DenBoer, Haibo Zhang | 2021-05-18 |