Issued Patents All Time
Showing 51–75 of 122 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10076824 | Polycrystalline diamond construction with controlled gradient metal content | Yuelin Shen, Guodong Zhan | 2018-09-18 |
| 9976356 | Rolling cutter with retaining ring | Yuri Burhan, Jibin Shi, Chen Chen | 2018-05-22 |
| 9890636 | Axially stable retention mechanism for picks and cutting elements | David R. Hall, Francis Leany, John J. Pierce, Yuri Burhan | 2018-02-13 |
| 9776917 | Coating on PDC/TSP cutter for accelerated leaching | Ted Tessitore, Anthony Griffo, Yuelin Shen, Madapusi K. Keshavan | 2017-10-03 |
| 9739097 | Polycrystalline diamond compact cutters with conic shaped end | Yuelin Shen, Yuri Burhan, Jibin Shi | 2017-08-22 |
| 9683410 | Cutter assemblies, downhole tools incorporating such cutter assemblies and methods of making such downhole tools | Yuelin Shen, Yuri Burhan, Gregory T. Lockwood | 2017-06-20 |
| 9624731 | Rolling cutter with side retention | Kjell Haugvaldstad | 2017-04-18 |
| 9605486 | Rolling cutter with close loop retaining ring | Yuri Burhan, Jibin Shi, Chen Chen | 2017-03-28 |
| 9482056 | Solid PCD cutter | Ronald K. Eyre, John Daniel Belnap, Yuelin Shen, Jibin Shi, Yuri Burhan | 2016-11-01 |
| 9464486 | Rolling cutter with bottom support | Chen Chen, Yuri Burhan, Jibin Shi | 2016-10-11 |
| 9464490 | Gage cutter protection for drilling bits | Michael G. Azar, Chen Chen, Yuri Burhan | 2016-10-11 |
| 9422770 | Method for braze joining of carbonate PCD | J. Daniel Belnap, Yahua Bao, Liang Zhao, Zhijun Lin | 2016-08-23 |
| 9328564 | Cutting elements retained within sleeves | Jibin Shi, Yuri Burhan, Chen Chen | 2016-05-03 |
| 9322219 | Rolling cutter using pin, ball or extrusion on the bit body as attachment methods | Yuri Burhan, Yuelin Shen | 2016-04-26 |
| 9297211 | Polycrystalline diamond construction with controlled gradient metal content | Yuelin Shen, Guodong Zhan | 2016-03-29 |
| 9291000 | Rolling cutter with improved rolling efficiency | Yuelin Shen, Yuri Burhan, Kjell Haugvaldstad | 2016-03-22 |
| 9284790 | Innovative cutting element and cutting structure using same | Jibin Shi, Yuri Burhan | 2016-03-15 |
| 9187962 | Methods of attaching rolling cutters in fixed cutter bits using sleeve, compression spring, and/or pin(s)/ball(s) | Yuri Burhan, Jiaqing Yu, Jonan Fulenchek, Yuelin Shen | 2015-11-17 |
| RE45748 | Modified cutters and a method of drilling with modified cutters | Yuelin Shen | 2015-10-13 |
| 9145743 | Cutting elements having cutting edges with continuous varying radii and bits incorporating the same | Yuelin Shen, Michael Janssen | 2015-09-29 |
| 9115553 | Cutting elements with re-processed thermally stable polycrystalline diamond cutting layers, bits incorporating the same, and methods of making the same | Yuelin Shen, Madapusi K. Keshavan | 2015-08-25 |
| 9103169 | Fixed cutter bit partial blade connection at bit center | Yuelin Shen, Paul Higgins | 2015-08-11 |
| 9097074 | Polycrystalline diamond composites | Yuelin Shen, Sujian Huang, Madapusi K. Keshavan | 2015-08-04 |
| 9033070 | Rolling cutter | Yuelin Shen, Zhou Yong, Jiaqing Yu, Madapusi K. Keshavan | 2015-05-19 |
| 9022148 | Diamond bonded construction comprising multi-sintered polycrystalline diamond | Yuelin Shen | 2015-05-05 |