Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8074750 | Earth-boring tools comprising silicon carbide composite materials, and methods of forming same | John H. Stevens, James L. Overstreet, Jimmy W. Eason, James C. Westhoff | 2011-12-13 |
| 7913779 | Earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials, and methods for forming such bits | John H. Stevens, James C. Westhoff, Jimmy W. Eason, James L. Overstreet | 2011-03-29 |