Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7264879 | Composite constructions with oriented microstructure | Ghanshyam Rai, Zhigang Fang | 2007-09-04 |
| 6841260 | Composite constructions with oriented microstructure | Ghanshyam Rai, Zhigang Fang | 2005-01-11 |
| 6615936 | Method for applying hardfacing to a substrate and its application to construction of milled tooth drill bits | Nephi M. Mourik, Alysia C. White | 2003-09-09 |
| 6478887 | Boronized wear-resistant materials and methods thereof | Zhigang Fang, Alysia C. White | 2002-11-12 |
| 6451442 | Composite constructions with oriented microstructure | Ghanshyam Rai, Zhigang Fang | 2002-09-17 |
| 6422327 | Drill bit with ridge-cutting cutter elements | Gary R. Portwood | 2002-07-23 |
| 6392190 | Automated hardfacing system | Zhigang Azk Fang, Alysia C. White | 2002-05-21 |
| 6361873 | Composite constructions having ordered microstructures | Zhou Yong, Sujian Huang, Michael A. Siracki, Chris E. Cawthorne, Ghanshyam Rai +1 more | 2002-03-26 |
| 6176329 | Drill bit with ridge-cutting cutter elements | Gary R. Portwood | 2001-01-23 |
| 6124564 | Hardfacing compositions and hardfacing coatings formed by pulsed plasma-transferred arc | Alysia C. White, Zhigang Fang | 2000-09-26 |
| 6063502 | Composite construction with oriented microstructure | Ghanshyam Rai, Zhigang Fang | 2000-05-16 |
| 5880382 | Double cemented carbide composites | Zhigang Fang | 1999-03-09 |