Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6872356 | Method of forming polycrystalline diamond cutters having modified residual stresses | Trent N. Butcher, Stephen R. Jurewicz, Danny E. Scott, Redd H. Smith | 2005-03-29 |
| 6521174 | Method of forming polycrystalline diamond cutters having modified residual stresses | Trent N. Butcher, Stephen R. Jurewicz, Danny E. Scott, Redd H. Smith | 2003-02-18 |
| 6220375 | Polycrystalline diamond cutters having modified residual stresses | Trent N. Butcher, Stephen R. Jurewicz, Danny E. Scott, Redd H. Smith | 2001-04-24 |
| 6202771 | Cutting element with controlled superabrasive contact area, drill bits so equipped | Danny E. Scott, Redd H. Smith, Arthur A. Chaves | 2001-03-20 |
| 6098731 | Drill bit compact with boron or beryllium for fracture resistance | Jacob Chow, Redd H. Smith, Gordon A. Tibbitts | 2000-08-08 |
| 5820985 | PDC cutters with improved toughness | Jacob Chow, Redd H. Smith, Gordon A. Tibbitts | 1998-10-13 |
| 5431239 | Stud design for drill bit cutting element | Gordon A. Tibbitts, Craig H. Cooley, Redd H. Smith, Paul E. Pastusek | 1995-07-11 |
| 5213248 | Bonding tool and its fabrication | James T. Hoggins, Shih-Yee Kuo | 1993-05-25 |
| 5147001 | Drill bit cutting array having discontinuities therein | Jacob Chow, Mark L. Jones | 1992-09-15 |
| 5090491 | Earth boring drill bit with matrix displacing material | Gordon A. Tibbitts, Lorenzo G. Lovato | 1992-02-25 |
| 5049164 | Multilayer coated abrasive element for bonding to a backing | Royce A. Anthon, James T. Hoggins | 1991-09-17 |
| 5000273 | Low melting point copper-manganese-zinc alloy for infiltration binder in matrix body rock drill bits | Royce A. Anthon | 1991-03-19 |