Hughes; Peter Raymond

Patent Applications and Registrations

Patent applications and USPTO patent grants for Hughes; Peter Raymond.The latest application filed is for "multi-edge working surfaces for polycrystalline diamond cutting elements".

Company Profile

0.16.22

Hughes; Peter Raymond - Stroud GB
Hughes; Peter Raymond - Stroud Gloucestershire GL5 4SG GB

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Dual-edge working surfaces for polycrystalline diamond cutting elements Grant 7,568,534 - Griffin , et al. August 4, 2	2009-08-04
Dual-Edge Working Surfaces for Polycrystalline Diamond Cutting Elements App 20080142275 - Griffin; Nigel Dennis ; et al.	2008-06-19
Multi-Edge Working Surfaces for Polycrystalline Diamond Cutting Elements App 20080142267 - Griffin; Nigel Dennis ; et al.	2008-06-19
Dual-Edge Working Surfaces for Polycrystalline Diamond Cutting Elements App 20060086540 - Griffin; Nigel Dennis ; et al.	2006-04-27
Rotary seal for directional drilling tools Grant 6,962,214 - Hughes , et al. November 8, 2	2005-11-08
Polycrystalline Diamond Partially Depleted of Catalyzing Material App 20050129950 - Griffin, Nigel Dennis ; et al.	2005-06-16
High Volume Density Polycrystalline Diamond With Working Surfaces Depleted Of Catalyzing Material App 20050115744 - Griffin, Nigel Dennis ; et al.	2005-06-02
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
High Volume Density Polycrystalline Diamond With Working Surfaces Depleted Of Catalyzing Material App 20040115435 - Griffin, Nigel Dennis ; et al.	2004-06-17
Polycrystalline diamond partially depleted of catalyzing material Grant 6,749,033 - Griffin , et al. June 15, 2	2004-06-15
Polycrystalline Diamond Partially Depleted Of Catalyzing Material App 20040105806 - Griffin, Nigel Dennis ; et al.	2004-06-03
Polycrystalline diamond partially depleted of catalyzing material Grant 6,739,214 - Griffin , et al. May 25, 2	2004-05-25
Polycrystalline Diamond Partially Depleted Of Catalyzing Material App 20030235691 - Griffin, Nigel Dennis ; et al.	2003-12-25
Polycrystalline Material Element with Improved Wear Resistance And Methods of Manufacture Thereof App 20030183426 - Griffin, Nigel Dennis ; et al.	2003-10-02
Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength Grant 6,601,662 - Matthias , et al. August 5, 2	2003-08-05
Polycrystalline diamond partially depleted of catalyzing material Grant 6,592,985 - Griffin , et al. July 15, 2	2003-07-15
Polycrystalline diamond partially depleted of catalyzing material Grant 6,589,640 - Griffin , et al. July 8, 2	2003-07-08
Polycrystalline diamond partially depleted of catalyzing material Grant 6,585,064 - Griffin , et al. July 1, 2	2003-07-01
High volume density polycrystalline diamond with working surfaces depleted of catalyzing material Grant 6,562,462 - Griffin , et al. May 13, 2	2003-05-13
High volume density polycrystalline diamond with working surfaces depleted of catalyzing material Grant 6,544,308 - Griffin , et al. April 8, 2	2003-04-08
Polycrystalline diamond partially depleted of catalyzing material App 20030037640 - Griffin, Nigel Dennis ; et al.	2003-02-27
Polycrystalline diamond partially depleted of catalyzing material App 20030034182 - Griffin, Nigel Dennis ; et al.	2003-02-20
Polycrystalline diamond partially depleted of catalyzing material App 20030035958 - Griffin, Nigel Dennis ; et al.	2003-02-20
Polycrystalline diamond partially depleted of catalyzing material App 20030035957 - Griffin, Nigel Dennis ; et al.	2003-02-20
Method of making polycrystalline diamond with working surfaces depleted of catalyzing material App 20030021995 - Griffin, Nigel Dennis ; et al.	2003-01-30
Rotary drill bit Grant 6,481,511 - Matthias , et al. November 19, 2	2002-11-19
Rotary seal for directional drilling tools App 20020139584 - Hughes, Peter Raymond ; et al.	2002-10-03
Rotary drill bit design method Grant 6,435,058 - Matthias , et al. August 20, 2	2002-08-20
Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength App 20020074168 - Matthias, Terry R. ; et al.	2002-06-20
High volume density polycrystalline diamond with working surfaces depleted of catalyzing material App 20020045059 - Griffin, Nigel Dennis ; et al.	2002-04-18
Rotary drill bit App 20020033282 - Griffin, Nigel Dennis ; et al.	2002-03-21
Machining of polycrystalline diamond App 20020033383 - Griffin, Nigel Dennis ; et al.	2002-03-21
High volume density polycrystalline diamond with working surfaces depleted of catalyzing material App 20020034631 - Griffin, Nigel Dennis ; et al.	2002-03-21
Polycrystalline diamond partially depleted of catalyzing material App 20020034632 - Griffin, Nigel Dennis ; et al.	2002-03-21
Rotary drill bit design method App 20020033077 - Griffin, Nigel Dennis ; et al.	2002-03-21

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