Issued Patents All Time
Showing 26–50 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8464814 | Systems for manufacturing downhole tools and downhole tool parts | John H. Stevens | 2013-06-18 |
| 8403080 | Earth-boring tools and components thereof including material having hard phase in a metallic binder, and metallic binder compositions for use in forming such tools and components | Prakash K. Mirchandani, James J. Oakes, James C. Westhoff, Gabriel B. Collins | 2013-03-26 |
| 8317893 | Downhole tool parts and compositions thereof | John H. Stevens | 2012-11-27 |
| 8309018 | Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies | Redd H. Smith, John H. Stevens, James L. Duggan, Nicholas J. Lyons, Jared D. Gladney +2 more | 2012-11-13 |
| 8292985 | Materials for enhancing the durability of earth-boring bits, and methods of forming such materials | David A. Curry, James L. Overstreet | 2012-10-23 |
| 8268452 | Bonding agents for improved sintering of earth-boring tools, methods of forming earth-boring tools and resulting structures | Nicholas J. Lyons, Redd H. Smith, John H. Stevens | 2012-09-18 |
| 8252225 | Methods of forming erosion-resistant composites, methods of using the same, and earth-boring tools utilizing the same in internal passageways | Travis E. Puzz | 2012-08-28 |
| 8230762 | Methods of forming earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials | Heeman Choe, John H. Stevens, James C. Westhoff, James L. Overstreet | 2012-07-31 |
| 8220566 | Carburized monotungsten and ditungsten carbide eutectic particles, materials and earth-boring tools including such particles, and methods of forming such particles, materials, and tools | John H. Stevens, James L. Overstreet | 2012-07-17 |
| 8201610 | Methods for manufacturing downhole tools and downhole tool parts | John H. Stevens | 2012-06-19 |
| 8172914 | Infiltration of hard particles with molten liquid binders including melting point reducing constituents, and methods of casting bodies of earth-boring tools | Prakash K. Mirchandani, James J. Oakes, James C. Westhoff, Gabriel B. Collins | 2012-05-08 |
| 8087324 | Cast cones and other components for earth-boring tools and related methods | Prakash K. Mirchandani, James J. Oakes, James C. Westhoff, Gabriel B. Collins, John H. Stevens +2 more | 2012-01-03 |
| 8079429 | Methods of forming earth-boring tools using geometric compensation and tools formed by such methods | Redd H. Smith, John H. Stevens, James L. Duggan, Nicholas J. Lyons, Oliver Matthews | 2011-12-20 |
| 8074750 | Earth-boring tools comprising silicon carbide composite materials, and methods of forming same | Heeman Choe, John H. Stevens, James L. Overstreet, James C. Westhoff | 2011-12-13 |
| 8043555 | Cemented tungsten carbide rock bit cone | Redd H. Smith, Trevor Burgess | 2011-10-25 |
| 8007714 | Earth-boring bits | Prakash K. Mirchandani, James J. Oakes, James C. Westhoff, Gabriel B. Collins, John H. Stevens +2 more | 2011-08-30 |
| 7997359 | Abrasive wear-resistant hardfacing materials, drill bits and drilling tools including abrasive wear-resistant hardfacing materials | James L. Overstreet | 2011-08-16 |
| 7954569 | Earth-boring bits | Prakash K. Mirchandani, James J. Oakes, James C. Westhoff, Gabriel B. Collins, John H. Stevens +2 more | 2011-06-07 |
| 7913779 | Earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials, and methods for forming such bits | Heeman Choe, John H. Stevens, James C. Westhoff, James L. Overstreet | 2011-03-29 |
| 7829013 | Components of earth-boring tools including sintered composite materials and methods of forming such components | James C. Westhoff, Roy C. Lueth | 2010-11-09 |
| 7810588 | Multi-layer encapsulation of diamond grit for use in earth-boring bits | Eric E. McClain, Dan E. Scott, Wesley Dean Fuller, Robert M. Welch, Marcus Skeem +1 more | 2010-10-12 |
| 7807099 | Method for forming earth-boring tools comprising silicon carbide composite materials | Heeman Choe, John H. Stevens, James C. Westhoff, James L. Overstreet | 2010-10-05 |
| 7802495 | Methods of forming earth-boring rotary drill bits | James Andy Oxford, Redd H. Smith, John H. Stevens, Nicholas J. Lyons | 2010-09-28 |
| 7784567 | Earth-boring rotary drill bits including bit bodies comprising reinforced titanium or titanium-based alloy matrix materials, and methods for forming such bits | Heeman Choe, John H. Stevens, James L. Overstreet, James C. Westhoff | 2010-08-31 |
| 7776256 | Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies | Redd H. Smith, John H. Stevens, James L. Duggan, Nicholas J. Lyons, Jared D. Gladney +2 more | 2010-08-17 |