| 12344921 |
Tungsten tetraboride composite matrix and uses thereof |
Richard B. Kaner, Christopher L. Turner, Jack Kavanaugh |
2025-07-01 |
|
| 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 |
$29,727,000 |
| 11920223 |
Tungsten tetraboride composite matrix and uses thereof |
Richard B. Kaner, Christopher L. Turner, Jack Kavanaugh |
2024-03-05 |
|
| 11313176 |
Metal matrix composite material for additive manufacturing of downhole tools |
Anthony Griffo, Youhe Zhang |
2022-04-26 |
$193,492,000 |
| 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 |
$50,778,000 |
| 11174538 |
Tungsten tetraboride composite matrix and uses thereof |
Richard B. Kaner, Christopher L. Turner, Jack Kavanaugh |
2021-11-16 |
|
| 11156036 |
Polycrystalline diamond cutting elements with transition zones and downhole cutting tools incorporating the same |
Ronald B. Crockett, Neil Cannon, Dwain Norris, David R. Hall |
2021-10-26 |
$53,909,000 |
| RE48455 |
Rolling cutter |
Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu |
2021-03-02 |
|
| 10851594 |
Kerfing hybrid drill bit and other downhole cutting tools |
Michael G. Azar, Balasubramanian Durairajan |
2020-12-01 |
|
| 10655401 |
Energy-emitting bits and cutting elements |
Michael G. Azar, Iain Cooper |
2020-05-19 |
$17,197,000 |
| 10309156 |
Cutting structures for fixed cutter drill bit and other downhole cutting tools |
Michael G. Azar, Bala Durairajan |
2019-06-04 |
|
| 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 |
|
| RE47369 |
Rolling cutter |
Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu |
2019-04-30 |
|
| 10267095 |
Cemented carbide composite for a downhole tool |
— |
2019-04-23 |
|
| 10174561 |
Polycrystalline diamond cutting elements with transition zones and downhole cutting tools incorporating the same |
David R. Hall, Ronald B. Crockett, Neil Cannon, Dwain Norris |
2019-01-08 |
|
| 10156097 |
Downhole tool for increasing a wellbore diameter |
Praful C. Desai, Iain Cooper |
2018-12-18 |
|
| 10132121 |
Polycrystalline diamond constructions having improved thermal stability |
Ronald K. Eyre, Anthony Griffo, Peter Thomas Cariveau |
2018-11-20 |
|
| 10124468 |
Polycrystalline diamond constructions having improved thermal stability |
Anthony Griffo, Yuelin Shen, Youhe Zhang |
2018-11-13 |
|
| 10030452 |
Cutting structures for fixed cutter drill bit and other downhole cutting tools |
Michael G. Azar, Bala Durairajan |
2018-07-24 |
|
| 9776917 |
Coating on PDC/TSP cutter for accelerated leaching |
Ted Tessitore, Anthony Griffo, Yuelin Shen, Youhe Zhang |
2017-10-03 |
|
| 9404312 |
Cutting structures for fixed cutter drill bit and other downhole cutting tools |
Michael G. Azar, Bala Durairajan |
2016-08-02 |
|
| 9393674 |
Cemented carbide composite for a downhole tool |
— |
2016-07-19 |
|
| 9387571 |
Manufacture of thermally stable cutting elements |
Anthony Griffo |
2016-07-12 |
|
| 9366090 |
Kerfing hybrid drill bit and other downhole cutting tools |
Michael G. Azar, Bala Durairajan |
2016-06-14 |
|
| 9115553 |
Cutting elements with re-processed thermally stable polycrystalline diamond cutting layers, bits incorporating the same, and methods of making the same |
Youhe Zhang, Yuelin Shen |
2015-08-25 |
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