Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12385323 | Downhole directional drilling tool | Andrew Mueller, Dennis Patrick Chesnutt, Ke Chen, Venkatesh Karuppiah | 2025-08-12 |
| 12146370 | Cutter with edge durability | Youhe Zhang | 2024-11-19 |
| 12139969 | Cutting elements having non-planar surfaces and tools incorporating the same | Anjie Dong, Gerard Johnson, Michael G. Azar, Huimin Song, Youhe Zhang +1 more | 2024-11-12 |
| 12123262 | PDC cutter with enhanced performance and durability | Youhe Zhang, Yuri Burhan, Ke Chen | 2024-10-22 |
| 12078015 | Polycrystalline diamond cutting element having improved cutting efficiency | Ronald K. Eyre, Yi Fang, Ronald B. Crockett, Lynn Belnap, Aaron Madsen +5 more | 2024-09-03 |
| 12078016 | Downhole cutting tool having cutting element with nonplanar face to improve cutting efficiency and durability | Manoj D. Mahajan, John Daniel Belnap, Yi Fang, Cheng Peng, Lynn Belnap +5 more | 2024-09-03 |
| 12031384 | Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elements | Chen Chen, Huimin Song, Liang Zhao, Youhe Zhang, Michael G. Azar +4 more | 2024-07-09 |
| 11939867 | Downhole directional drilling tool | Andrew Mueller, Dennis Patrick Chesnutt, Ke Chen, Venkatesh Karuppiah | 2024-03-26 |
| 11920408 | Cutter with geometric cutting edges | Youhe Zhang | 2024-03-05 |
| 11814904 | Cutting structure of cutting elements for downhole cutting tools | Huimin Song, Zhijun Lin, Ke Chen | 2023-11-14 |
| 11795764 | Cutting elements having non-planar surfaces and tools incorporating the same | Anjie Dong, Gerard Johnson, Michael G. Azar, Huimin Song, Youhe Zhang +1 more | 2023-10-24 |
| 11578538 | Cutting element with nonplanar face to improve cutting efficiency and durability | Manoj D. Mahajan, John Daniel Belnap, Yi Fang, Cheng Peng, Lynn Belnap +5 more | 2023-02-14 |
| 11459830 | Devices and systems for using additive manufacturing to manufacture a tool crown | Youhe Zhang, Huimin Song, Rogelio Benitez | 2022-10-04 |
| 11396776 | Multiple ridge cutting element | Huimin Song, Jason Ray Gregg, Sandeep Tammineni | 2022-07-26 |
| 11215012 | Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elements | Chen Chen, Huimin Song, Liang Zhao, Youhe Zhang, Michael G. Azar +4 more | 2022-01-04 |
| 11125021 | Customized drilling tools | Youhe Zhang, Huimin Song | 2021-09-21 |
| 11098532 | Cutting elements having non-planar surfaces and tools incorporating the same | Anjie Dong, Gerard Johnson, Michael G. Azar, Huimin Song, Youhe Zhang +1 more | 2021-08-24 |
| 11091960 | Placement of non-planar cutting elements | Youhe Zhang, Huimin Song | 2021-08-17 |
| 10907415 | Multiple ridge cutting element | Huimin Song, Jason Ray Gregg, Sandeep Tammineni | 2021-02-02 |
| 10662722 | Threaded connections and downhole tools incorporating the same | Ke Chen, Venkatesh Karuppiah, Anthony Collins, Ke Ken Li, Fei Song +3 more | 2020-05-26 |
| 10350733 | Ultra-hard material cutting elements and methods of manufacturing the same with a metal-rich intermediate layer | Liang Zhao, Yahua Bao, Yuri Burhan, Youhe Zhang, J. Daniel Belnap +1 more | 2019-07-16 |
| 10337257 | Customized drilling tools | Youhe Zhang, Huimin Song | 2019-07-02 |
| 10287825 | Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elements | Chen Chen, Huimin Song, Liang Zhao, Youhe Zhang, Michael G. Azar +4 more | 2019-05-14 |
| 9416593 | Piston strike face and bit interface for percussion hammer drill | Lokesh Bhatia, Kevin Edgar Harrington, Robert H. Slaughter, Jr. | 2016-08-16 |