Issued Patents All Time
Showing 51–75 of 111 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8002859 | Manufacture of thermally stable cutting elements | Anthony Griffo | 2011-08-23 |
| 7946363 | Thermally stable polycrystalline diamond cutting elements and bits incorporating the same | Youhe Zhang, Yuelin Shen, Michael G. Azar | 2011-05-24 |
| 7942219 | Polycrystalline diamond constructions having improved thermal stability | Ronald K. Eyre, Anthony Griffo, Peter Thomas Cariveau | 2011-05-17 |
| 7862634 | Polycrystalline composites reinforced with elongated nanostructures | J. Daniel Belnap, Guodong Zhan, Xiayang Sheng, Youhe Zhang, Harry H. Pratt +1 more | 2011-01-04 |
| 7845059 | Method of forming impregnated diamond cutting structures | Gregory T. Lockwood, Thomas W. Oldham, Anthony Griffo, David A. Conroy | 2010-12-07 |
| 7836981 | Thermally stable polycrystalline diamond cutting elements and bits incorporating the same | Youhe Zhang, Yuelin Shen, Michael G. Azar | 2010-11-23 |
| 7770672 | Layered hardfacing, durable hardfacing for drill bits | Kumar T. Kembaiyan, Alysia C. White, Brian A. White | 2010-08-10 |
| 7749947 | High performance rock bit grease | Anthony Griffo | 2010-07-06 |
| 7703559 | Rolling cutter | Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu | 2010-04-27 |
| 7703560 | Cutting element with canted interface surface and bit body incorporating the same | Ronald K. Eyre, David Truax | 2010-04-27 |
| 7694757 | Thermally stable polycrystalline diamond materials, cutting elements incorporating the same and bits incorporating such cutting elements | — | 2010-04-13 |
| 7533740 | Thermally stable polycrystalline diamond cutting elements and bits incorporating the same | Youhe Zhang, Yuelin Shen, Mike Azar | 2009-05-19 |
| 7493973 | Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance | Youhe Zhang, Yuelin Shen, Anthony Griffo, Michael Janssen | 2009-02-24 |
| 7470341 | Method of manufacturing a cutting element from a partially densified substrate | J. Daniel Belnap, Dave Slutz | 2008-12-30 |
| 7461709 | Multiple diameter cutting elements and bits incorporating the same | Michael G. Azar, David Truax | 2008-12-09 |
| 7451838 | High energy cutting elements and bits incorporating the same | — | 2008-11-18 |
| 7435478 | Cutting structures | — | 2008-10-14 |
| 7407012 | Thermally stable diamond cutting elements in roller cone drill bits | Anthony Griffo | 2008-08-05 |
| 7395885 | Cutting element with canted interface surface and bit body incorporating the same | Ronald K. Eyre, David Truax | 2008-07-08 |
| 7373997 | Layered hardfacing, durable hardfacing for drill bits | Kumar T. Kembaiyan, Alysia C. White, Brian A. White | 2008-05-20 |
| 7350599 | Impregnated diamond cutting structures | Greg Lockwood, Thomas W. Oldham, Anthony Griffo, David A. Conroy | 2008-04-01 |
| 7229077 | Ordered elastomeric composite material | Anthony Griffo, Alysia C. White, Robert Denton, Patricia Heel, Leroy N. Tinkham +1 more | 2007-06-12 |
| 7165636 | Cutting element with canted interface surface and bit body incorporating the same | Ronald K. Eyre, David Truax | 2007-01-23 |
| 7017677 | Coarse carbide substrate cutting elements and method of forming the same | Anthony Griffo, David Truax, Dah-Ben Liang | 2006-03-28 |
| 6991049 | Cutting element | Ronald K. Eyre, David Truax | 2006-01-31 |