| 9187960 |
Expandable reamer tools |
Steven R. Radford, Scott Shiqiang Shu, Les T. Shale, Mark R. Kizziar, Anton F. Zahradnik |
2015-11-17 |
| 8453763 |
Expandable earth-boring wellbore reamers and related methods |
Steven R. Radford, Scott Shiquiang Shu, Les T. Shale, Mark R. Kizziar, Anton F. Zahradnik |
2013-06-04 |
| 8104550 |
Methods for applying wear-resistant material to exterior surfaces of earth-boring tools and resulting structures |
James L. Overstreet, Michael L. Doster, Kenneth E. Gilmore, Robert M. Welch, Danielle V. Roberts |
2012-01-31 |
| 7997354 |
Expandable reamers for earth-boring applications and methods of using the same |
Steven R. Radford, Scott Shiquiang Shu, Les T. Shale, Mark R. Kizziar, Anton F. Zahradnik |
2011-08-16 |
| 7350600 |
Shirttails for reducing damaging effects of cuttings |
Christopher C. Beuershausen, Raul E. Lema, Ronald Hales, Don Q. Nguyen, Gregory L. Ricks +6 more |
2008-04-01 |
| 7182162 |
Shirttails for reducing damaging effects of cuttings |
Christopher C. Beuershausen, Raul E. Lema, Ronald Hales, Don Q. Nguyen, Gregory L. Ricks +6 more |
2007-02-27 |
| 7066286 |
Gage surface scraper |
Don Q. Nguyen, Terry J. Koltermann, Gregory L. Ricks, Chris M. McCarty, Chih Lin |
2006-06-27 |
| 6695080 |
Reaming apparatus and method with enhanced structural protection |
W. Gregory Presley, Christopher S. Charles, Steven R. Radford, Matthew J. Meiners, D. Jay Clinkscales +3 more |
2004-02-24 |
| 6651756 |
Steel body drill bits with tailored hardfacing structural elements |
Robert J. Costo, Jr., James L. Overstreet, Anton F. Zahradnik, James L. Duggan, Russel S. Smith |
2003-11-25 |
| 6397958 |
Reaming apparatus and method with ability to drill out cement and float equipment in casing |
Christopher S. Charles, William Gregory Presley, Sean K. Berzas, Douglas J. Bobrosky, Mark W. Dykstra +2 more |
2002-06-04 |