Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659206 | Hardfacing composition for rock bits | Dah-Ben Liang | 2003-12-09 |
| 6615935 | Roller cone bits with wear and fracture resistant surface | Zhigang Fang, Anthony Griffo, Chris E. Cawthorne | 2003-09-09 |
| 6615936 | Method for applying hardfacing to a substrate and its application to construction of milled tooth drill bits | Nephi M. Mourik, J. Albert Sue | 2003-09-09 |
| 6607835 | Composite constructions with ordered microstructure | Zhigang Fang, Anthony Griffo | 2003-08-19 |