Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10323465 | Optimization of rolling elements on drill bits | Shilin Chen | 2019-06-18 |
| 10267093 | Drilling tool including multi-step depth of cut control | Shilin Chen | 2019-04-23 |
| 10214966 | Rotary drill bits with back-up cutting elements to optimize bit life | Shilin Chen, Guy Lefort, James R. Ashby | 2019-02-26 |