Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Anthony Griffo0
Greg Lockwood0
Ramamurthy Viswanadham0
Date of Patent
December 4, 2007
Patent Application Number
10917855
Date Filed
August 13, 2004
Patent Primary Examiner
Patent abstract
A hardfacing composition for a drill bit includes a carbide phase made from carbide particles having a barrier coating disposed thereon, and binder alloy. Also, a drill bit includes a steel bit body having hardfacing thereon and having at least one blade thereon, at least one cutter pocket disposed on the blade, at least one cutter disposed in the cutter pocket; and hardfacing applied to at least composition that includes a carbide phase formed from carbide particles having a barrier coating disposed thereon; and a binder alloy.
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