Issued Patents 2002
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6484826 | Engineered enhanced inserts for rock drilling bits | Nathan R. Anderson, J. Daniel Belnap, Chris E. Cawthorne, Ronald K. Eyre, Madapusi K. Keshavan +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 | Chris E. Cawthorne, Per Ivar Nese, Madapusi K. Keshavan, J. Daniel Belnap, Ronald K. Eyre +1 more | 2002-10-08 |
| 6419034 | Engineered enhanced inserts for rock drilling bits | J. Daniel Belnap, Ronald K. Eyre, Per Ivar Nese, Madapusi K. Keshavan, Nathan R. Anderson | 2002-07-16 |
| 6361873 | Composite constructions having ordered microstructures | Zhou Yong, Sujian Huang, Chris E. Cawthorne, J. Albert Sue, Ghanshyam Rai +1 more | 2002-03-26 |
| 6345673 | High offset bits with super-abrasive cutters | — | 2002-02-12 |
| 6336512 | Drill bit having canted seal | Steven W. Peterson, Chris E. Cawthorne, Quan Nguyen | 2002-01-08 |