Issued Patents 2025
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12421808 | Devices, systems, and methods for a reinforcing ring in a bit | Youhe Zhang | 2025-09-23 |
| 12352108 | Devices, systems, and methods for a bit including a matrix portion and a steel portion | Youhe Zhang, Mingdong Cai, Ting Ren | 2025-07-08 |
| 12326044 | Erosion resistant insert for drill bits | Youhe Zhang, Steven G. Villareal | 2025-06-10 |
| 12241312 | Cutting tool with pre-formed segment | Youhe Zhang, Jan S. Morley | 2025-03-04 |