Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE48524 | Cutting elements having cutting edges with continuous varying radii and bits incorporating the same | Yuelin Shen, Youhe Zhang | 2021-04-20 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE48524 | Cutting elements having cutting edges with continuous varying radii and bits incorporating the same | Yuelin Shen, Youhe Zhang | 2021-04-20 |