Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10702937 | Methods of forming earth-boring tools, methods of affixing cutting elements to earth-boring tools | — | 2020-07-07 |
| 9481033 | Earth-boring tools including cutting elements with alignment features and related methods | — | 2016-11-01 |
| 8191654 | Methods of drilling using differing types of cutting elements | Eric E. McClain, John C. Thomas, Sarvesh Tyagi, Jack T. Oldham, Lester I. Clark | 2012-06-05 |
| 8172008 | Drilling apparatus with reduced exposure of cutters and methods of drilling | Mark W. Dykstra, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham, Terry D. Watts +3 more | 2012-05-08 |
| 8066084 | Drilling apparatus with reduced exposure of cutters and methods of drilling | Mark W. Dykstra, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham, Terry D. Watts +3 more | 2011-11-29 |
| 7954570 | Cutting elements configured for casing component drillout and earth boring drill bits including same | Eric E. McClain, John C. Thomas, Sarvesh Tyagi, Jack T. Oldham, Lester I. Clark | 2011-06-07 |
| 7866413 | Methods for designing and fabricating earth-boring rotary drill bits having predictable walk characteristics and drill bits configured to exhibit predicted walk characteristics | Bruce Stauffer, Jim Jacobsen | 2011-01-11 |
| 7814990 | Drilling apparatus with reduced exposure of cutters and methods of drilling | Mark W. Dykstra, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham, Terry D. Watts +3 more | 2010-10-19 |
| 7096978 | Drill bits with reduced exposure of cutters | Mark W. Dykstra, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham, Terry D. Watts +3 more | 2006-08-29 |
| 6935441 | Drill bits with reduced exposure of cutters | Mark W. Dykstra, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham, Terry D. Watts +3 more | 2005-08-30 |
| 6779613 | Drill bits with controlled exposure of cutters | Mark W. Dykstra, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham, Terry D. Watts +3 more | 2004-08-24 |
| 6460631 | Drill bits with reduced exposure of cutters | Mark W. Dykstra, Michael L. Doster, Theodore E. Zaleski, Jr., Jack T. Oldham, Terry D. Watts +3 more | 2002-10-08 |
| 6408958 | Superabrasive cutting assemblies including cutters of varying orientations and drill bits so equipped | Matthew R. Isbell, Rudolf Carl Pessier, Michael L. Doster, Mark W. Dykstra | 2002-06-25 |