| 7690446 |
Single cone rock bit having inserts adapted to maintain hole gage during drilling |
Peter Wilson, Scott D. McDonough, Michael A. Siracki |
2010-04-06 |
| 7665547 |
Drill bit reservoir with controllable relief pressure |
Zhou Yong, Carlos A. Torres |
2010-02-23 |
| 7401668 |
Single cone rock bit having inserts adapted to maintain hole gage during drilling |
Peter Wilson, Scott D. McDonough, Michael A. Siracki |
2008-07-22 |
| 7100711 |
Single cone rock bit having inserts adapted to maintain hole gage during drilling |
Peter Wilson, Scott D. McDonough, Michael A. Siracki |
2006-09-05 |
| 6814162 |
One cone bit with interchangeable cutting structures, a box-end connection, and integral sensory devices |
David P. Moran |
2004-11-09 |
| 6719073 |
Single-cone rock bit having cutting structure adapted to improve hole cleaning, and to reduce tracking and bit balling |
Ying Xiang, Michael A. Siracki |
2004-04-13 |