Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10760343 | Drill bit, a method for making a body of a drill bit, a metal matrix composite, and a method for making a metal matrix composite | Zhongming Wang, Andrew David Bell, Robert Horswell | 2020-09-01 |
| 8016056 | Asymmetric graded composites for improved drill bits | Dah-Ben Liang, Gregory T. Lockwood | 2011-09-13 |
| 7552783 | Graded hardfacing for drill bits | — | 2009-06-30 |
| 7549912 | Method of finishing cutting elements | Dah-Ben Liang | 2009-06-23 |
| 7416035 | Shaped inserts with increased retention force | Lance Richman, Chris E. Cawthorne, Anthony Griffo | 2008-08-26 |
| 7303030 | Barrier coated granules for improved hardfacing material | Greg Lockwood, Anthony Griffo | 2007-12-04 |
| 6286406 | Injection molded carbide cutting insert | Carl Shumaker, David Brutscher, Donald C. Pennington, Jr. | 2001-09-11 |
| 4556424 | Cermets having transformation-toughening properties and method of heat-treating to improve such properties | — | 1985-12-03 |