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Patentes

Citada por

Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US458950427 Jul 198420 May 1986Diamant Boart Societe AnonymeWell bore enlarger
US464682629 Jul 19853 Mar 1987A-Z International Tool CompanyWell string cutting apparatus
US481772526 Nov 19864 Abr 1989C. "Jerry" Wattigny, a part interestOil field cable abrading system
US48876686 Nov 198619 Dic 1989Tri-State Oil Tool Industries, Inc.Cutting tool for cutting well casing
US507095228 Nov 198910 Dic 1991Smith International, Inc.Downhole milling tool and cutter therefor
US524201727 Dic 19917 Sep 1993Cutter blades for rotary tubing tools
US535001530 Jun 199327 Sep 1994Rotary downhole cutting tool
US537390022 Jul 199320 Dic 1994Baker Hughes IncorporatedDownhole milling tool
US545631217 Oct 199410 Oct 1995Baker Hughes IncorporatedDownhole milling tool
US57327702 Ago 199631 Mar 1998Weatherford/Lamb, Inc.Wellbore cutter
US573535910 Jun 19967 Abr 1998Weatherford/Lamb, Inc.Wellbore cutting tool
US581007910 Oct 199522 Sep 1998Baker Hughes IncorporatedDownhole milling tool
US589926828 Oct 19974 May 1999Baker Hughes IncorporatedDownhole milling tool
US662956523 Jul 20017 Oct 2003Smith International, Inc.Abandonment and retrieval apparatus and method
US75370555 Nov 200326 May 2009Schlumberger Technology CorporationMethod and apparatus for forming a window in a casing using a biasing arm
US758159130 Ene 20071 Sep 2009Liquid Gold Well Service, Inc.Production casing ripper
US795456424 Jul 20087 Jun 2011Smith International, Inc.Placement of cutting elements on secondary cutting structures of drilling tool assemblies