Issued Patents 2011
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8079429 | Methods of forming earth-boring tools using geometric compensation and tools formed by such methods | Redd H. Smith, John H. Stevens, James L. Duggan, Nicholas J. Lyons, Oliver Matthews | 2011-12-20 |
| 8074750 | Earth-boring tools comprising silicon carbide composite materials, and methods of forming same | Heeman Choe, John H. Stevens, James L. Overstreet, James C. Westhoff | 2011-12-13 |
| 8043555 | Cemented tungsten carbide rock bit cone | Redd H. Smith, Trevor Burgess | 2011-10-25 |
| 8007714 | Earth-boring bits | Prakash K. Mirchandani, James J. Oakes, James C. Westhoff, Gabriel B. Collins, John H. Stevens +2 more | 2011-08-30 |
| 7997359 | Abrasive wear-resistant hardfacing materials, drill bits and drilling tools including abrasive wear-resistant hardfacing materials | James L. Overstreet | 2011-08-16 |
| 7954569 | Earth-boring bits | Prakash K. Mirchandani, James J. Oakes, James C. Westhoff, Gabriel B. Collins, John H. Stevens +2 more | 2011-06-07 |
| 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 | Heeman Choe, John H. Stevens, James C. Westhoff, James L. Overstreet | 2011-03-29 |