Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |