Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6872356 | Method of forming polycrystalline diamond cutters having modified residual stresses | Trent N. Butcher, Ralph M. Horton, Danny E. Scott, Redd H. Smith | 2005-03-29 |
| 6521174 | Method of forming polycrystalline diamond cutters having modified residual stresses | Trent N. Butcher, Ralph M. Horton, Danny E. Scott, Redd H. Smith | 2003-02-18 |
| 6220375 | Polycrystalline diamond cutters having modified residual stresses | Trent N. Butcher, Ralph M. Horton, Danny E. Scott, Redd H. Smith | 2001-04-24 |
| 6202770 | Superabrasive cutting element with enhanced durability and increased wear life and apparatus so equipped | Kenneth M. Jensen, Gordon A. Tibbitts | 2001-03-20 |
| 6098730 | Earth-boring bit with super-hard cutting elements | Danny E. Scott, Rudolf Carl Pessier, Robert J. Farr, Kenneth M. Jensen, Paul Douglas Jones | 2000-08-08 |
| 6068071 | Cutter with polycrystalline diamond layer and conic section profile | — | 2000-05-30 |
| 6000483 | Superabrasive cutting element with enhanced durability and increased wear life, and apparatus so equipped | Kenneth M. Jensen, Gordon A. Tibbitts | 1999-12-14 |
| 5979579 | Polycrystalline diamond cutter with enhanced durability | — | 1999-11-09 |
| 5875862 | Polycrystalline diamond cutter with integral carbide/diamond transition layer | Kenneth M. Jensen | 1999-03-02 |
| 5871060 | Attachment geometry for non-planar drill inserts | Kenneth M. Jensen | 1999-02-16 |
| 5855247 | Rolling-cutter earth-boring bit having predominantly super-hard cutting elements | Danny E. Scott, Amy J.G. Jurewicz | 1999-01-05 |
| 5758733 | Earth-boring bit with super-hard cutting elements | Danny E. Scott, Rudolf Carl Pessier, Robert J. Farr, Kenneth M. Jensen, Paul Douglas Jones | 1998-06-02 |
| 5706906 | Superabrasive cutting element with enhanced durability and increased wear life, and apparatus so equipped | Kenneth M. Jensen, Gordon A. Tibbitts | 1998-01-13 |
| 5273125 | Fixed cutter bit with improved diamond filled compacts | — | 1993-12-28 |
| 5248006 | Rotary rock bit with improved diamond-filled compacts | Danny E. Scott | 1993-09-28 |
| 5173090 | Rock bit compact and method of manufacture | Danny E. Scott | 1992-12-22 |
| 5159857 | Fixed cutter bit with improved diamond filled compacts | — | 1992-11-03 |
| 5128080 | Method of forming diamond impregnated carbide via the in-situ conversion of dispersed graphite | Timothy W. Hurst | 1992-07-07 |
| 5119714 | Rotary rock bit with improved diamond filled compacts | Danny E. Scott | 1992-06-09 |