Rotary cone bit with functionally-engineered composite inserts | Patent Publication Number 20020029909

US 20020029909 A1
Patent NumberUS 06571889 B2
Application Number9846944
Filled DateMay 1, 2001
Priority DateMay 1, 2000
Publication DateMar 14, 2002
Original AssigneeSlb
Current AssigneeSlb
Inventor/ApplicantsRobert Denton
Zhigang Fang
Anthony Griffo
Zhigang Fang
Anthony Griffo
Robert Denton
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