Inventor · disambiguated record
James L. Duggan
Also filed as: DUGGAN JAMES L · DUGGAN JAMES LYNN
14 granted patents·2 pending applications·411 citations·filing 1998–2014
94Inventor score
Top patents by PatentIndex Score
16 records- 0196US8309018B2Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodiesSMITH REDD H·Filed 2010·Granted Nov 13, 2012·16 cites·20 claims
- 0295US7776256B2Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodiesBAKER HUGES INC·Filed 2005·Granted Aug 17, 2010·57 cites·62 claims
- 0394US7216565B2Methods of manufacturing and repairing steel body rotary drill bits including support elements affixed to the bit body at least partially defining cutter pocket recessesBAKER HUGHES INC·Filed 2006·Granted May 15, 2007·30 cites·12 claims
- 0494US7070011B2Steel body rotary drill bits including support elements affixed to the bit body at least partially defining cutter pocket recessesBAKER HUGHES INC·Filed 2003·Granted Jul 4, 2006·59 cites·19 claims
- 0593US7703556B2Methods of attaching a shank to a body of an earth-boring tool including a load-bearing joint and tools formed by such methodsBAKER HUGHES INC·Filed 2008·Granted Apr 27, 2010·41 cites·17 claims
- 0691US6651756B1Steel body drill bits with tailored hardfacing structural elementsBAKER HUGHES INC·Filed 2000·Granted Nov 25, 2003·135 cites·22 claims
- 0774US7775287B2Methods of attaching a shank to a body of an earth-boring drilling tool, and tools formed by such methodsBAKER HUGHES INC·Filed 2006·Granted Aug 17, 2010·14 cites·32 claims
- 0869US7520345B2Fixed cutter rotary drill bit including support elements affixed to the bit body at least partially defining cutter pocket recessesBAKER HUGHES INC·Filed 2007·Granted Apr 21, 2009·8 cites·25 claims
- 0965US7681668B2Shrink-fit sleeve assembly for a drill bit, including nozzle assembly and method thereforBAKER HUGHES INC·Filed 2007·Granted Mar 23, 2010·7 cites·28 claims
- 1061US9163461B2Methods of attaching a shank to a body of an earth-boring tool including a load-bearing joint and tools formed by such methodsBAKER HUGHES INC·Filed 2014·Granted Oct 20, 2015·1 cites·20 claims
- 1156US8746373B2Methods of attaching a shank to a body of an earth-boring tool including a load-bearing joint and tools formed by such methodsSMITH REDD H·Filed 2009·Granted Jun 10, 2014·3 cites·11 claims
- 1253US8079429B2Methods of forming earth-boring tools using geometric compensation and tools formed by such methodsSMITH REDD H·Filed 2008·Granted Dec 20, 2011·3 cites·22 claims
- 1352US6098728ARock bit nozzle arrangementBAKER HUGHES INC·Filed 1998·Granted Aug 8, 2000·34 cites·30 claims
- 1451US8065935B2Method of manufacturing a rotary drill bitSHERWOOD JR WILLIAM H·Filed 2009·Granted Nov 29, 2011·3 cites·5 claims
- 1545US2010155147A1Methods of enhancing retention forces between interfering parts, and structures formed by such methodsBAKER HUGHES INC·Filed 2010·Application pending·0 cites
- 1639US2008223622A1Earth-boring tools having pockets for receiving cutting elements therein and methods of forming such pockets and earth-boring toolsDUGGAN JAMES L·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →