Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7703560 | Cutting element with canted interface surface and bit body incorporating the same | Madapusi K. Keshavan, David Truax | 2010-04-27 |
| 7608333 | Thermally stable diamond polycrystalline diamond constructions | — | 2009-10-27 |
| 7604074 | Cutting elements and bits incorporating the same | Yabei Gu | 2009-10-20 |
| 7558369 | Nondestructive method of measuring a region within an ultra-hard polycrystalline construction | Nephi Mourik | 2009-07-07 |
| 7517589 | Thermally stable diamond polycrystalline diamond constructions | — | 2009-04-14 |
| 7506698 | Cutting elements and bits incorporating the same | John L. Williams | 2009-03-24 |
| 7441610 | Ultrahard composite constructions | J. Daniel Belnap, Anthony Griffo, Stewart N. Middlemiss | 2008-10-28 |
| 7395885 | Cutting element with canted interface surface and bit body incorporating the same | Madapusi K. Keshavan, David Truax | 2008-07-08 |
| 7384592 | Methods for manufacturing ultrahard compacts | Christopher H. Weis, Stewart N. Middlemiss, David Iverson | 2008-06-10 |
| 7165636 | Cutting element with canted interface surface and bit body incorporating the same | Madapusi K. Keshavan, David Truax | 2007-01-23 |
| 6991049 | Cutting element | Madapusi K. Keshavan, David Truax | 2006-01-31 |
| 6962218 | Cutting elements with improved cutting element interface design and bits incorporating the same | — | 2005-11-08 |
| 6892836 | Cutting element having a substrate, a transition layer and an ultra hard material layer | Madapusi K. Keshavan | 2005-05-17 |
| 6604588 | Gage trimmers and bit incorporating the same | Stewart N. Middlemiss, Lynn Belnap | 2003-08-12 |
| 6550556 | Ultra hard material cutter with shaped cutting surface | Stewart N. Middlemiss | 2003-04-22 |
| 6513608 | Cutting elements with interface having multiple abutting depressions | Christopher A. Tucker | 2003-02-04 |
| 6510910 | Unplanar non-axisymmetric inserts | Stewart N. Middlemiss | 2003-01-28 |
| 6484826 | Engineered enhanced inserts for rock drilling bits | Nathan R. Anderson, J. Daniel Belnap, Chris E. Cawthorne, Madapusi K. Keshavan, Per Ivar Nese +2 more | 2002-11-26 |
| 6460636 | Drill bit inserts with variations in thickness of diamond coating | Zhou Yong, Suprant J. Huang, Nathan R. Anderson, J. Daniel Belnap, Chris E. Cawthorne +4 more | 2002-10-08 |
| 6460637 | Engineered enhanced inserts for rock drilling bits | Michael A. Siracki, Chris E. Cawthorne, Per Ivar Nese, Madapusi K. Keshavan, J. Daniel Belnap +1 more | 2002-10-08 |
| 6446740 | Cutting element with improved polycrystalline material toughness and method for making same | — | 2002-09-10 |
| 6419034 | Engineered enhanced inserts for rock drilling bits | J. Daniel Belnap, Michael A. Siracki, Per Ivar Nese, Madapusi K. Keshavan, Nathan R. Anderson | 2002-07-16 |
| 6405814 | Cutting element with canted design for improved braze contact area | Madapusi K. Keshavan, David Truax | 2002-06-18 |
| 6325165 | Cutting element with improved polycrystalline material toughness | — | 2001-12-04 |
| 6202772 | Cutting element with canted design for improved braze contact area | Madapusi K. Keshavan, David Truax | 2001-03-20 |