Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10214966 | Rotary drill bits with back-up cutting elements to optimize bit life | Shilin Chen, Guy Lefort, Robert W. Arfele | 2019-02-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10214966 | Rotary drill bits with back-up cutting elements to optimize bit life | Shilin Chen, Guy Lefort, Robert W. Arfele | 2019-02-26 |