Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6951578 | Polycrystalline diamond materials formed from coarse-sized diamond grains | Daniel J. Belnap, Zhigang Fang, Anthony Griffo, Brian A. White | 2005-10-04 |
| 6651757 | Toughness optimized insert for rock and hammer bits | Dan Belnap, Michael A. Siracki, Sujian Huang | 2003-11-25 |
| 6484826 | Engineered enhanced inserts for rock drilling bits | J. Daniel Belnap, Chris E. Cawthorne, Ronald K. Eyre, 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, J. Daniel Belnap, Chris E. Cawthorne, Ronald K. Eyre +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 |
| 6419034 | Engineered enhanced inserts for rock drilling bits | J. Daniel Belnap, Ronald K. Eyre, Michael A. Siracki, Per Ivar Nese, Madapusi K. Keshavan | 2002-07-16 |
| 6199645 | Engineered enhanced inserts for rock drilling bits | J. Daniel Belnap, Chris E. Cawthorne, Ronald K. Eyre, Madapusi K. Keshavan, Per Ivar Nese +2 more | 2001-03-13 |
| 6051079 | Diamond coated cutting tool insert | Jan Andersson | 2000-04-18 |
| 6041875 | Non-planar interfaces for cutting elements | Ghanshyam Rai, Ronald K. Eyre | 2000-03-28 |
| 5868885 | Manufacture of cutting tools | Ronald B. Crockett, Scott M. Packer, Richard L. Dixon, Ronald K. Eyre, Madapusi K. Keshavan +1 more | 1999-02-09 |
| 5837071 | Diamond coated cutting tool insert and method of making same | Jan Andersson | 1998-11-17 |
| 5766394 | Method for forming a polycrystalline layer of ultra hard material | Ronald K. Eyre, Madapusi K. Keshavan, Ghanshyam Rai | 1998-06-16 |