Issued Patents 2011
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8074750 | Earth-boring tools comprising silicon carbide composite materials, and methods of forming same | Heeman Choe, John H. Stevens, Jimmy W. Eason, James C. Westhoff | 2011-12-13 |
| 8047309 | Passive and active up-drill features on fixed cutter earth-boring tools and related systems and methods | Robert J. Buske, Kenneth E. Gilmore, John H. Stevens | 2011-11-01 |
| 8028769 | Reamer with stabilizers for use in a wellbore | Rudolf Carl Pessier, Robert J. Buske | 2011-10-04 |
| 8002052 | Particle-matrix composite drill bits with hardfacing | John H. Stevens, Kenneth E. Gilmore, Jeremy K. Morgan | 2011-08-23 |
| 7997359 | Abrasive wear-resistant hardfacing materials, drill bits and drilling tools including abrasive wear-resistant hardfacing materials | Jimmy W. Eason | 2011-08-16 |
| 7980333 | Bar trimmers on disk bit | Robert J. Buske | 2011-07-19 |
| 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, Jimmy W. Eason | 2011-03-29 |
| 7878274 | Steel tooth disk with hardfacing | Robert J. Buske | 2011-02-01 |
| 7866417 | Self sharpening steel tooth cutting structure | Robert J. Buske | 2011-01-11 |