Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Rudolf Carl Pessier0
Anton F. Zahradnik0
Don Q. Nguyen0
Jack T. Oldham0
Karlos B. Cepeda0
Mark P. Blackman0
Matthew J. Meiners0
Michael S. Damschen0
...
Date of Patent
March 25, 2014
Patent Application Number
12271033
Date Filed
November 14, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
A hybrid earth-boring bit comprising a bit body having a central axis, at least one, preferably three fixed blades, depending downwardly from the bit body, each fixed blade having a leading edge, and at least one rolling cutter, preferably three rolling cutters, mounted for rotation on the bit body. A rolling cutter is located between two fixed blades.
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