Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8069937 | Polycrystalline diamond compact including a cemented tungsten carbide substrate that is substantially free of tungsten carbide grains exhibiting abnormal grain growth and applications therefor | Kenneth E. Bertagnolli, Mohammad N. Sani | 2011-12-06 |
| 8020645 | Method of fabricating polycrystalline diamond and a polycrystalline diamond compact | Kenneth E. Bertagnolli, Jiang Qian, Jason K. Wiggins, Michael A. Vail | 2011-09-20 |
| 7866418 | Rotary drill bit including polycrystalline diamond cutting elements | Kenneth E. Bertagnolli, Jiang Qian, Jason K. Wiggins, Michael A. Vail | 2011-01-11 |