US Patent 7426969 Bits and cutting structures

Patent 7426969 was granted and assigned to Smith International on September, 2008 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Smith International

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

74269690

Patent Inventor Names

Michael George Azar0

Date of Patent

September 23, 2008

Patent Application Number

109675840

Date Filed

October 18, 2004

Patent Primary Examiner

‌

Kenneth Thompson

Patent abstract

This invention provides an improved cutting element for downhole cutting tools comprising a support element and a shearing element disposed on said support; a drill bit insert comprising a body and said cutting element disposed on said body; and a cutting tool, such as a hole opener or a reamer, comprising said cutting element and/or said drill bit insert. Also provided are methods for forming the said cutting element, drill bit insert and downhole cutting tools and a method for drilling mixed earth formation using the improved downhole cutting tools of the present invention.

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