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James L. Duggan

Baker Hughes

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Publication

Featured researches published by James L. Duggan.

Archive | 2006

Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies

Redd H. Smith; John H. Stevens; James L. Duggan; Nicholas J. Lyons; Jimmy W. Eason; Jared D. Gladney; James Andy Oxford; Benjamin J. Chrest

Archive | 2000

Steel body drill bits with tailored hardfacing structural elements

Robert J. Costo; James L. Overstreet; Anton F. Zahradnik; James L. Duggan; Russel S. Smith; Mark E. Morris

Archive | 2006

Methods of attaching a shank to a body of an earth-boring drilling tool, and tools formed by such methods

James L. Duggan; Redd H. Smith

Archive | 2003

Cutting element retention apparatus for use in steel body rotary drill bits, steel body rotary drill bits so equipped, and method of manufacture and repair therefor

William H. Sherwood; L. R. Borremans; Robert J. Costo; James L. Duggan

Archive | 2006

Methods of manufacturing and repairing rotary drill bits including support elements affixed to the bit body at least partially defining cutter pocket recesses

William H. Sherwood; L. R. Borremans; Robert J. Costo; James L. Duggan

Archive | 2009

Methods of attaching a shank to a body of an earth-boring tool including a load-bearing joint and tools formed by such methods

Redd H. Smith; James L. Duggan; Anupam K. Singh

Archive | 2007

Shrink fit sleeve assembly for a drill bit, including nozzle assembly and method thereof

James Andy Oxford; John H. Stevens; James L. Duggan; Redd H. Smith

Archive | 2007

Earth-boring tools having pockets for receiving cutting elements therein and methods of forming such pockets and earth-boring tools

James L. Duggan; John H. Stevens; Redd H. Smith

Archive | 1998

Rock bit nozzle arrangement

Jennifer Ann Wells; Wayne Lee Baker; Christopher S. Charles; James L. Duggan; Thomas John Gottschalk; Timothy K. Marvel; Daniel E. Ruff; Troy Richard Stuart

Archive | 2009

Method of manufacturing a rotary drill bit

William H. Sherwood; L. Richard Borremans; Robert J. Costo; James L. Duggan

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Redd H. Smith

Baker Hughes

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John H. Stevens

Baker Hughes

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Jimmy W. Eason

Baker Hughes

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Nicholas J. Lyons

Baker Hughes

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James Andy Oxford

Baker Hughes

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Robert J. Costo

Baker Hughes

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Benjamin J. Chrest

Baker Hughes

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Jared D. Gladney

Baker Hughes

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David A. Curry

Baker Hughes

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Oliver Matthews

Baker Hughes

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