Inventor
DUGGAN JAMES L
US13 patents
⚠️ This page may combine multiple inventors who share the name “DUGGAN JAMES L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAKER HUGHES INC
8 patentsUS6651756B1Nov 25, 2003
Steel body drill bits with tailored hardfacing structural elements
BAKER HUGHES INC135 citations95
US7703556B2Apr 27, 2010
Methods of attaching a shank to a body of an earth-boring tool including a load-bearing joint and tools formed by such methods
BAKER HUGHES INC41 citations94
US7070011B2Jul 4, 2006
Steel body rotary drill bits including support elements affixed to the bit body at least partially defining cutter pocket recesses
BAKER HUGHES INC59 citations94
US7216565B2May 15, 2007
Methods of manufacturing and repairing steel body rotary drill bits including support elements affixed to the bit body at least partially defining cutter pocket recesses
BAKER HUGHES INC30 citations90
US7775287B2Aug 17, 2010
Methods of attaching a shank to a body of an earth-boring drilling tool, and tools formed by such methods
BAKER HUGHES INC14 citations84
US7520345B2Apr 21, 2009
Fixed cutter rotary drill bit including support elements affixed to the bit body at least partially defining cutter pocket recesses
BAKER HUGHES INC8 citations81
US7681668B2Mar 23, 2010
Shrink-fit sleeve assembly for a drill bit, including nozzle assembly and method therefor
BAKER HUGHES INC7 citations73
US9163461B2Oct 20, 2015
Methods of attaching a shank to a body of an earth-boring tool including a load-bearing joint and tools formed by such methods
BAKER HUGHES INC1 citations60
SMITH REDD H
3 patentsUS8309018B2Nov 13, 2012
Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies
SMITH REDD H16 citations90
US8079429B2Dec 20, 2011
Methods of forming earth-boring tools using geometric compensation and tools formed by such methods
SMITH REDD H3 citations62
US8746373B2Jun 10, 2014
Methods of attaching a shank to a body of an earth-boring tool including a load-bearing joint and tools formed by such methods
SMITH REDD H3 citations60