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| US4203732 | 3 Mar 1975 | 20 May 1980 | | Method of making an abrasive product |
| US4737162 | 12 Aug 1986 | 12 Apr 1988 | | Method of producing electro-formed abrasive tools |
| US5119714 | 1 Mar 1991 | 9 Jun 1992 | Hughes Tool Company | Rotary rock bit with improved diamond filled compacts |
| US5159857 | 1 Mar 1991 | 3 Nov 1992 | Hughes Tool Company | Fixed cutter bit with improved diamond filled compacts |
| US5203880 | 24 Jul 1992 | 20 Apr 1993 | | Method and apparatus for making abrasive tools |
| US5248006 | 7 May 1992 | 28 Sep 1993 | Baker Hughes Incorporated | Rotary rock bit with improved diamond-filled compacts |
| US5273125 | 7 May 1992 | 28 Dec 1993 | Baker Hughes Incorporated | Fixed cutter bit with improved diamond filled compacts |
