Inventor
MCDONOUGH SCOTT D
US36 patents
⚠️ This page may combine multiple inventors who share the name “MCDONOUGH SCOTT D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH INTERNATIONAL
30 patentsUS5351770AOct 4, 1994
Ultra hard insert cutters for heel row rotary cone rock bit applications
SMITH INTERNATIONAL183 citations99
US5839526ANov 24, 1998
Rolling cone steel tooth bit with enhancements in cutter shape and placement
SMITH INTERNATIONAL138 citations97
US6848521B2Feb 1, 2005
Cutting elements of gage row and first inner row of a drill bit
SMITH INTERNATIONAL49 citations96
US6640913B2Nov 4, 2003
Drill bit with canted gage insert
SMITH INTERNATIONAL42 citations96
US6059054AMay 9, 2000
Non-symmetrical stress-resistant rotary drill bit cutter element
SMITH INTERNATIONAL120 citations96
US5915486AJun 29, 1999
Cutter element adapted to withstand tensile stress
SMITH INTERNATIONAL49 citations96
US5868213AFeb 9, 1999
Steel tooth cutter element with gage facing knee
SMITH INTERNATIONAL64 citations96
US5421424AJun 6, 1995
Bowed out chisel insert for rock bits
SMITH INTERNATIONAL56 citations96
US5152194AOct 6, 1992
Hardfaced mill tooth rotary cone rock bit
SMITH INTERNATIONAL76 citations96
US7631709B2Dec 15, 2009
Drill bit and cutter element having chisel crest with protruding pilot portion
SMITH INTERNATIONAL19 citations93
US7367413B2May 6, 2008
Cutting elements of gage row and first inner row of a drill bit
SMITH INTERNATIONAL10 citations92
US7292967B2Nov 6, 2007
Methods for evaluating cutting arrangements for drill bits and their application to roller cone drill bit designs
SMITH INTERNATIONAL29 citations92
US7234549B2Jun 26, 2007
Methods for evaluating cutting arrangements for drill bits and their application to roller cone drill bit designs
SMITH INTERNATIONAL30 citations92
US7686104B2Mar 30, 2010
Rolling cone drill bit having cutter elements positioned in a plurality of differing radial positions
SMITH INTERNATIONAL10 citations80
US7377340B2May 27, 2008
Drill bit cutting elements with selectively positioned wear resistant surface
SMITH INTERNATIONAL8 citations74
US7195078B2Mar 27, 2007
Multiple inserts of different geometry in a single row of a bit
SMITH INTERNATIONAL8 citations74
US7124842B2Oct 24, 2006
Cutting elements of gage row and first inner row of a drill bit
SMITH INTERNATIONAL5 citations74
US7100711B2Sep 5, 2006
Single cone rock bit having inserts adapted to maintain hole gage during drilling
SMITH INTERNATIONAL8 citations73
US7950476B2May 31, 2011
Drill bit and cutter element having chisel crest with protruding pilot portion
SMITH INTERNATIONAL3 citations63
US7743857B2Jun 29, 2010
Cutting elements of gage row and first inner row of a drill bit
SMITH INTERNATIONAL2 citations63
US7721824B2May 25, 2010
Multiple inserts of different geometry in a single row of a bit
SMITH INTERNATIONAL3 citations63
US7549490B2Jun 23, 2009
Arrangement of roller cone inserts
SMITH INTERNATIONAL3 citations63
US7377332B2May 27, 2008
Multiple inserts of different geometry in a single row of a bit
SMITH INTERNATIONAL4 citations63
US7690446B2Apr 6, 2010
Single cone rock bit having inserts adapted to maintain hole gage during drilling
SMITH INTERNATIONAL2 citations62
US11136830B2Oct 5, 2021
Downhole tools with variable cutting element arrays
SMITH INTERNATIONAL1 citations53
US10145180B2Dec 4, 2018
Hybrid cutting structures with blade undulations
SMITH INTERNATIONAL1 citations52
US7571083B2Aug 4, 2009
Method of designing a drill bit, and bits made using said method
SMITH INTERNATIONAL0 citations52
US10731422B2Aug 4, 2020
Hybrid cutting structures with blade undulations
SMITH INTERNATIONAL0 citations51
US7798255B2Sep 21, 2010
Drill bits having optimized cutting element counts for reduced tracking and/or increased drilling performance
SMITH INTERNATIONAL1 citations48
US7401668B2Jul 22, 2008
Single cone rock bit having inserts adapted to maintain hole gage during drilling
SMITH INTERNATIONAL0 citations48