US Patent 7819208 Dynamically stable hybrid drill bit
Patent 7819208 was granted and assigned to Baker Hughes on October, 2010 by the United States Patent and Trademark Office.
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Patent abstract
An earth-boring bit comprising a bit body configured at its upper extent for connection into a drillstring. A selected number of fixed blades extend downward from the bit body and a selected number of rolling cutters are mounted for rotation on the bit body. A plurality of rolling-cutter cutting elements are arranged on each rolling cutter and a plurality of fixed-blade cutting elements are arranged on each fixed blade. The selected number of fixed blades exceeds the selected number of rolling cutters by at least one.
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Patent Inventor Names
Don Q. Nguyen0
Michael L. Doster0
Michael Steven Damschen0
Rudolf Carl Pessier0
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US Patent 07819208 Dynamically stable hybrid drill bit US Patent 7819208 Dynamically stable hybrid drill bit
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Patent Number
078192080
Patent Number
78192080
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Current Assignee
Patent Jurisdiction
Patent Number
078192080
Date of Patent
October 26, 2010
0Patent Application Number
121799150
Date Filed
July 25, 2008
0Official Website
Patent Primary Examiner
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US Patent 07819208 Dynamically stable hybrid drill bit
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07819208
Date of patent
October 26, 2010
Patent application number
12179915
Date Filed
July 25, 2008
Patent primary examiner
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