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Patent applications and USPTO patent grants for Reedhycalog UK Limited.The latest application filed is for "pdc cutter with stress diffusing structures".
Patent | Date |
---|---|
PDC cutter with stress diffusing structures Grant 8,721,752 - Fuller , et al. May 13, 2 | 2014-05-13 |
PDC Cutter with Stress Diffusing Structures App 20110212303 - Fuller; John Michael ;   et al. | 2011-09-01 |
Dual-edge working surfaces for polycrystalline diamond cutting elements Grant 7,568,534 - Griffin , et al. August 4, 2 | 2009-08-04 |
Representation of whirl in fixed cutter drill bits Grant 7,457,734 - Johnson , et al. November 25, 2 | 2008-11-25 |
Multi-Edge Working Surfaces for Polycrystalline Diamond Cutting Elements App 20080142267 - Griffin; Nigel Dennis ;   et al. | 2008-06-19 |
Rotary drill bit Grant 7,318,492 - Watson , et al. January 15, 2 | 2008-01-15 |
Stabilizer arrangement Grant 7,308,955 - Barton , et al. December 18, 2 | 2007-12-18 |
Polycrystalline diamond partially depleted of catalyzing material Grant 6,878,447 - Griffin , et al. April 12, 2 | 2005-04-12 |
High volume density polycrystalline diamond with working surfaces depleted of catalyzing material Grant 6,861,137 - Griffin , et al. March 1, 2 | 2005-03-01 |
Polycrystalline diamond partially depleted of catalyzing material Grant 6,861,098 - Griffin , et al. March 1, 2 | 2005-03-01 |
Method of making polycrystalline diamond with working surfaces depleted of catalyzing material Grant 6,797,326 - Griffin , et al. September 28, 2 | 2004-09-28 |
Polycrystalline diamond partially depleted of catalyzing material Grant 6,739,214 - Griffin , et al. May 25, 2 | 2004-05-25 |
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