Issued Patents All Time
Showing 26–50 of 111 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9097074 | Polycrystalline diamond composites | Yuelin Shen, Youhe Zhang, Sujian Huang | 2015-08-04 |
| 9033070 | Rolling cutter | Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu | 2015-05-19 |
| 8955734 | Ball hole welding using the friction stir welding (FSW) process | Russell J. Steel, Scott M. Packer, Cary A. Roth | 2015-02-17 |
| 8893828 | High strength infiltrated matrix body using fine grain dispersions | Gregory T. Lockwood, Anthony Griffo | 2014-11-25 |
| 8887837 | Cutting structures for fixed cutter drill bit and other downhole cutting tools | Michael G. Azar, Bala Durairajan | 2014-11-18 |
| 8875813 | Atomic layer deposition nanocoatings on cutting tool powder materials | Guodong Zhan, Youhe Zhang, Feng Yu, Xian Yao, J. Daniel Belnap +1 more | 2014-11-04 |
| 8852546 | Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance | Youhe Zhang, Yuelin Shen, Anthony Griffo, Michael Janssen | 2014-10-07 |
| 8800691 | Rolling cutter | Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu | 2014-08-12 |
| 8771389 | Methods of making and attaching TSP material for forming cutting elements, cutting elements having such TSP material and bits incorporating such cutting elements | Monte Russell | 2014-07-08 |
| 8763881 | Methods of hardbanding joints of pipe using friction stir welding | Russell J. Steel, Cary A. Roth, Shelton W. Alsup | 2014-07-01 |
| 8752656 | Method of designing a bottom hole assembly and a bottom hole assembly | Youhe Zhang, Yuelin Shen, Peter Thomas Cariveau | 2014-06-17 |
| 8590130 | 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 | 2013-11-26 |
| 8567534 | Thermally stable polycrystalline diamond cutting elements and bits incorporating the same | Youhe Zhang, Yuelin Shen, Michael G. Azar | 2013-10-29 |
| 8561731 | Hardmetal for use in oil and gas drilling applications | Dah-Ben Liang | 2013-10-22 |
| 8499861 | Ultra-hard composite constructions comprising high-density diamond surface | Anthony Griffo | 2013-08-06 |
| 8470060 | Manufacture of thermally stable cutting elements | Anthony Griffo | 2013-06-25 |
| 8413746 | Rolling cutter | Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu | 2013-04-09 |
| 8414986 | Method of forming surface coatings on cutting elements | — | 2013-04-09 |
| 8309050 | Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance | Youhe Zhang, Yuelin Shen, Anthony Griffo, Michael Janssen | 2012-11-13 |
| 8197936 | Cutting structures | — | 2012-06-12 |
| 8157029 | Thermally stable polycrystalline diamond cutting elements and bits incorporating the same | Youhe Zhang, Yuelin Shen, Michael G. Azar | 2012-04-17 |
| 8091655 | Rolling cutter | Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu | 2012-01-10 |
| 8066087 | Thermally stable ultra-hard material compact constructions | Anthony Griffo, Youhe Zhang, Yuelin Shen, Michael Janssen | 2011-11-29 |
| 8028771 | Polycrystalline diamond constructions having improved thermal stability | Anthony Griffo, Yuelin Shen, Youhe Zhang | 2011-10-04 |
| 8020644 | Thermally stable polycrystalline diamond materials, cutting elements incorporating the same and bits incorporating such cutting elements | — | 2011-09-20 |