Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5639285 | Polycrystallline cubic boron nitride cutting tool | Xian Yao, Matthew W. Collier, Ghanshyam Rai | 1997-06-17 |
| 5593474 | Composite cemented carbide | Proserfina C. Rey | 1997-01-14 |