Issued Patents All Time
Showing 76–98 of 98 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8606552 | Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk | — | 2013-12-10 |
| 8437995 | Drill bit and design method for optimizing distribution of individual cutter forces, torque, work, or power | Oliver Matthews, Robert I. Clayton | 2013-05-07 |
| 8356679 | Rotary drill bit with gage pads having improved steerability and reduced wear | Riun Ashlie | 2013-01-22 |
| 8352221 | Methods and systems for design and/or selection of drilling equipment based on wellbore drilling simulations | — | 2013-01-08 |
| 8296115 | Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk | — | 2012-10-23 |
| 8210288 | Rotary drill bits with protected cutting elements and methods | William W. King | 2012-07-03 |
| 8145465 | Methods and systems to predict rotary drill bit walk and to design rotary drill bits and other downhole tools | — | 2012-03-27 |
| 8051923 | Rotary drill bits with gage pads having improved steerability and reduced wear | Riun Ashlie | 2011-11-08 |
| 7860696 | Methods and systems to predict rotary drill bit walk and to design rotary drill bits and other downhole tools | — | 2010-12-28 |
| 7860693 | Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk | — | 2010-12-28 |
| 7827014 | Methods and systems for design and/or selection of drilling equipment based on wellbore drilling simulations | — | 2010-11-02 |
| 7778777 | Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk | — | 2010-08-17 |
| 7729895 | Methods and systems for designing and/or selecting drilling equipment with desired drill bit steerability | — | 2010-06-01 |
| 7624823 | Roller cone drill bits with optimized cutting zones, load zones, stress zones and wear zones for increased drilling life and methods | — | 2009-12-01 |
| 7497281 | Roller cone drill bits with enhanced cutting elements and cutting structures | James Dahlem | 2009-03-03 |
| 7434632 | Roller cone drill bits with enhanced drilling stability and extended life of associated bearings and seals | Ping Sui | 2008-10-14 |
| 7360612 | Roller cone drill bits with optimized bearing structures | Ping Sui | 2008-04-22 |
| 7334652 | Roller cone drill bits with enhanced cutting elements and cutting structures | James Dahlem | 2008-02-26 |
| 6986395 | Force-balanced roller-cone bits, systems, drilling methods, and design methods | — | 2006-01-17 |
| 6412577 | Roller-cone bits, systems, drilling methods, and design methods with optimization of tooth orientation | — | 2002-07-02 |
| 6401839 | Roller cone bits, methods, and systems with anti-tracking variation in tooth orientation | — | 2002-06-11 |
| 6213225 | Force-balanced roller-cone bits, systems, drilling methods, and design methods | — | 2001-04-10 |
| 6095262 | Roller-cone bits, systems, drilling methods, and design methods with optimization of tooth orientation | — | 2000-08-01 |