Issued Patents All Time
Showing 1–6 of 6 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 |
| 9650835 | System and method of configuring drilling tools utilizing a critical depth of cut control curve | Shilin Chen, Robert W. Arfele | 2017-05-16 |
| 9540882 | System and method of configuring drilling tools utilizing a critical depth of cut control curve | Shilin Chen, Robert W. Arfele | 2017-01-10 |
| 9523242 | System and method of constant depth of cut control of drilling tools | Shilin Chen, Robert W. Arfele | 2016-12-20 |
| 9506294 | System and method of constant depth of cut control of drilling tools | Shilin Chen, Robert W. Arfele | 2016-11-29 |
| 8863860 | System and method of improved depth of cut control of drilling tools | Shilin Chen, Robert W. Arfele | 2014-10-21 |