Issued Patents All Time
Showing 1–25 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11313176 | Metal matrix composite material for additive manufacturing of downhole tools | Madapusi K. Keshavan, Youhe Zhang | 2022-04-26 |
| 10350731 | Thermally stable diamond polycrystalline diamond constructions | Ronald K. Eyre, Thomas W. Oldham | 2019-07-16 |
| 10132121 | Polycrystalline diamond constructions having improved thermal stability | Madapusi K. Keshavan, Ronald K. Eyre, Peter Thomas Cariveau | 2018-11-20 |
| 10124468 | Polycrystalline diamond constructions having improved thermal stability | Madapusi K. Keshavan, Yuelin Shen, Youhe Zhang | 2018-11-13 |
| 9776917 | Coating on PDC/TSP cutter for accelerated leaching | Ted Tessitore, Yuelin Shen, Youhe Zhang, Madapusi K. Keshavan | 2017-10-03 |
| 9387571 | Manufacture of thermally stable cutting elements | Madapusi K. Keshavan | 2016-07-12 |
| 8956438 | Low coefficient of thermal expansion cermet compositions | Zhigang Fang, Gregory T. Lockwood, Dah-Ben Liang | 2015-02-17 |
| 8893828 | High strength infiltrated matrix body using fine grain dispersions | Gregory T. Lockwood, Madapusi K. Keshavan | 2014-11-25 |
| 8881851 | Thermally-stable polycrystalline diamond materials and compacts | John Daniel Belnap, Stewart N. Middlemiss, Thomas W. Oldham, Kumar T. Kembaiyan | 2014-11-11 |
| 8852546 | Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance | Madapusi K. Keshavan, Youhe Zhang, Yuelin Shen, Michael Janssen | 2014-10-07 |
| 8562703 | Thermally stable diamond polycrystalline diamond constructions | Ronald K. Eyre, Thomas W. Oldham | 2013-10-22 |
| 8535400 | Techniques and materials for the accelerated removal of catalyst material from diamond bodies | J. Daniel Belnap, Peter Thomas Cariveau, Loel Corbett, Yahua Bao, Gerald Demenna | 2013-09-17 |
| 8499861 | Ultra-hard composite constructions comprising high-density diamond surface | Madapusi K. Keshavan | 2013-08-06 |
| 8470060 | Manufacture of thermally stable cutting elements | Madapusi K. Keshavan | 2013-06-25 |
| 8397841 | Drill bit with cutting elements having functionally engineered wear surface | Ahigang Fang, Robert Denton | 2013-03-19 |
| 8323372 | Low coefficient of thermal expansion cermet compositions | Zhigang Fang, Gregory T. Lockwood, Dah-Ben Liang | 2012-12-04 |
| 8309050 | Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance | Madapusi K. Keshavan, Youhe Zhang, Yuelin Shen, Michael Janssen | 2012-11-13 |
| 8147572 | Thermally stable diamond polycrystalline diamond constructions | Ronald K. Eyre, Thomas W. Oldham | 2012-04-03 |
| 8066087 | Thermally stable ultra-hard material compact constructions | Madapusi K. Keshavan, Youhe Zhang, Yuelin Shen, Michael Janssen | 2011-11-29 |
| 8056650 | Thermally stable ultra-hard material compact construction | Stewart N. Middlemiss, J. Daniel Belnap, Nephi M. Mourik, Thomas W. Oldham | 2011-11-15 |
| 8028771 | Polycrystalline diamond constructions having improved thermal stability | Madapusi K. Keshavan, Yuelin Shen, Youhe Zhang | 2011-10-04 |
| 8021721 | Composite coating with nanoparticles for improved wear and lubricity in down hole tools | — | 2011-09-20 |
| 8002859 | Manufacture of thermally stable cutting elements | Madapusi K. Keshavan | 2011-08-23 |
| 7997358 | Bonding of cutters in diamond drill bits | Saul N. Izaguirre, Thomas W. Oldham, Kumar T. Kembaiyan, Gary Chunn, Robert Denton +1 more | 2011-08-16 |
| 7942219 | Polycrystalline diamond constructions having improved thermal stability | Madapusi K. Keshavan, Ronald K. Eyre, Peter Thomas Cariveau | 2011-05-17 |