Inventor
LIANG DAH-BEN
US24 patents
⚠️ This page may combine multiple inventors who share the name “LIANG DAH-BEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH INTERNATIONAL
20 patentsUS7017677B2Mar 28, 2006
Coarse carbide substrate cutting elements and method of forming the same
SMITH INTERNATIONAL109 citations98
US6659206B2Dec 9, 2003
Hardfacing composition for rock bits
SMITH INTERNATIONAL78 citations97
US5370195ADec 6, 1994
Drill bit inserts enhanced with polycrystalline diamond
SMITH INTERNATIONAL365 citations97
US5791422AAug 11, 1998
Rock bit with hardfacing material incorporating spherical cast carbide particles
SMITH INTERNATIONAL75 citations96
US5715899AFeb 10, 1998
Hard facing material for rock bits
SMITH INTERNATIONAL62 citations96
US5305840AApr 26, 1994
Rock bit with cobalt alloy cemented tungsten carbide inserts
SMITH INTERNATIONAL68 citations96
US6782958B2Aug 31, 2004
Hardfacing for milled tooth drill bits
SMITH INTERNATIONAL65 citations93
US7475743B2Jan 13, 2009
High-strength, high-toughness matrix bit bodies
SMITH INTERNATIONAL40 citations92
US7128773B2Oct 31, 2006
Compositions having enhanced wear resistance
SMITH INTERNATIONAL45 citations92
US7036614B2May 2, 2006
Fracture and wear resistant compounds and rock bits
SMITH INTERNATIONAL16 citations92
US6655478B2Dec 2, 2003
Fracture and wear resistant rock bits
SMITH INTERNATIONAL21 citations92
US6197084B1Mar 6, 2001
Thermal fatigue and shock-resistant material for earth-boring bits
SMITH INTERNATIONAL19 citations92
US5944127AAug 31, 1999
Hardfacing material for rock bits
SMITH INTERNATIONAL47 citations92
US5472058ADec 5, 1995
Rock bit with mechanical seal
SMITH INTERNATIONAL46 citations92
US7666244B2Feb 23, 2010
Hardfacing milled-tooth drill bits using super dense carbide pellets
SMITH INTERNATIONAL18 citations84
US7832506B2Nov 16, 2010
Cutting elements with increased toughness and thermal fatigue resistance for drilling applications
SMITH INTERNATIONAL10 citations82
US7549912B2Jun 23, 2009
Method of finishing cutting elements
SMITH INTERNATIONAL11 citations82
US7407525B2Aug 5, 2008
Fracture and wear resistant compounds and down hole cutting tools
SMITH INTERNATIONAL7 citations74
US7258177B2Aug 21, 2007
Fracture and wear resistant compounds and rock bits
SMITH INTERNATIONAL9 citations74
US8956438B2Feb 17, 2015
Low coefficient of thermal expansion cermet compositions
SMITH INTERNATIONAL0 citations52