Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8047309 | Passive and active up-drill features on fixed cutter earth-boring tools and related systems and methods | James L. Overstreet, Robert J. Buske, John H. Stevens | 2011-11-01 |
| 8002052 | Particle-matrix composite drill bits with hardfacing | John H. Stevens, James L. Overstreet, Jeremy K. Morgan | 2011-08-23 |