Issued Patents All Time
Showing 1–23 of 23 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 |
| 12139969 | Cutting elements having non-planar surfaces and tools incorporating the same | Xiaoge Gan, Anjie Dong, Gerard Johnson, Michael G. Azar, Youhe Zhang +1 more | 2024-11-12 |
| 12031384 | Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elements | Chen Chen, Liang Zhao, Youhe Zhang, Michael G. Azar, Xiaoge Gan +4 more | 2024-07-09 |
| 12031386 | Blade cover | Youhe Zhang, Sudarsanam Chellappa, Ting Ren | 2024-07-09 |
| 12006773 | Drilling tool having pre-fabricated components | Youhe Zhang, Mingdong Cai, Sudarsanam Chellappa, Ting Ren | 2024-06-11 |
| 11814904 | Cutting structure of cutting elements for downhole cutting tools | Xiaoge Gan, Zhijun Lin, Ke Chen | 2023-11-14 |
| 11795764 | Cutting elements having non-planar surfaces and tools incorporating the same | Xiaoge Gan, Anjie Dong, Gerard Johnson, Michael G. Azar, Youhe Zhang +1 more | 2023-10-24 |
| 11781754 | Assembly for controlling detonation wave mode of rotating detonation combustion chamber | Yun Ju Wu, Feilong SONG, Min Jia, Shanguang GUO, Xin Chen +2 more | 2023-10-10 |
| 11591857 | Cutting tool with pre-formed hardfacing segments | Youhe Zhang, Jan S. Morley | 2023-02-28 |
| 11459830 | Devices and systems for using additive manufacturing to manufacture a tool crown | Youhe Zhang, Xiaoge Gan, Rogelio Benitez | 2022-10-04 |
| 11396776 | Multiple ridge cutting element | Xiaoge Gan, Jason Ray Gregg, Sandeep Tammineni | 2022-07-26 |
| 11220868 | Split threads for fixing accessories to a body | Youhe Zhang, Yuri Burhan | 2022-01-11 |
| 11215012 | Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elements | Chen Chen, Liang Zhao, Youhe Zhang, Michael G. Azar, Xiaoge Gan +4 more | 2022-01-04 |
| 11125021 | Customized drilling tools | Xiaoge Gan, Youhe Zhang | 2021-09-21 |
| 11098532 | Cutting elements having non-planar surfaces and tools incorporating the same | Xiaoge Gan, Anjie Dong, Gerard Johnson, Michael G. Azar, Youhe Zhang +1 more | 2021-08-24 |
| 11091960 | Placement of non-planar cutting elements | Youhe Zhang, Xiaoge Gan | 2021-08-17 |
| 11035175 | Drill bit body construction | Youhe Zhang | 2021-06-15 |
| 10907415 | Multiple ridge cutting element | Xiaoge Gan, Jason Ray Gregg, Sandeep Tammineni | 2021-02-02 |
| 10337257 | Customized drilling tools | Youhe Zhang, Xiaoge Gan | 2019-07-02 |
| 10287825 | Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elements | Chen Chen, Liang Zhao, Youhe Zhang, Michael G. Azar, Xiaoge Gan +4 more | 2019-05-14 |