Inventor
OLDHAM THOMAS W
US31 patents
⚠️ This page may combine multiple inventors who share the name “OLDHAM THOMAS W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH INTERNATIONAL
25 patentsUS7754333B2Jul 13, 2010
Thermally stable diamond polycrystalline diamond constructions
SMITH INTERNATIONAL102 citations99
US7661491B2Feb 16, 2010
High-strength, high-toughness matrix bit bodies
SMITH INTERNATIONAL55 citations98
US7473287B2Jan 6, 2009
Thermally-stable polycrystalline diamond materials and compacts
SMITH INTERNATIONAL136 citations98
US7377341B2May 27, 2008
Thermally stable ultra-hard material compact construction
SMITH INTERNATIONAL244 citations98
US7250069B2Jul 31, 2007
High-strength, high-toughness matrix bit bodies
SMITH INTERNATIONAL73 citations98
US6772849B2Aug 10, 2004
Protective overlay coating for PDC drill bits
SMITH INTERNATIONAL85 citations98
US5494122AFeb 27, 1996
Composite nozzles for rock bits
SMITH INTERNATIONAL130 citations98
US6287360B1Sep 11, 2001
High-strength matrix body
SMITH INTERNATIONAL215 citations97
US7828088B2Nov 9, 2010
Thermally stable ultra-hard material compact construction
SMITH INTERNATIONAL39 citations96
US7350599B2Apr 1, 2008
Impregnated diamond cutting structures
SMITH INTERNATIONAL82 citations96
US7044243B2May 16, 2006
High-strength/high-toughness alloy steel drill bit blank
SMITH INTERNATIONAL94 citations96
US6461401B1Oct 8, 2002
Composition for binder material particularly for drill bit bodies
SMITH INTERNATIONAL64 citations96
US6375706B2Apr 23, 2002
Composition for binder material particularly for drill bit bodies
SMITH INTERNATIONAL128 citations96
US5765095AJun 9, 1998
Polycrystalline diamond bit manufacturing
SMITH INTERNATIONAL169 citations94
US4944774AJul 31, 1990
Hard facing for milled tooth rock bits
SMITH INTERNATIONAL60 citations94
US4836307AJun 6, 1989
Hard facing for milled tooth rock bits
SMITH INTERNATIONAL99 citations94
US7644786B2Jan 12, 2010
Diamond bit steel body cutter pocket protection
SMITH INTERNATIONAL17 citations92
US7475743B2Jan 13, 2009
High-strength, high-toughness matrix bit bodies
SMITH INTERNATIONAL40 citations92
US4869329ASep 26, 1989
Rock bit insert
SMITH INTERNATIONAL39 citations92
US7997358B2Aug 16, 2011
Bonding of cutters in diamond drill bits
SMITH INTERNATIONAL14 citations82
US7625521B2Dec 1, 2009
Bonding of cutters in drill bits
SMITH INTERNATIONAL15 citations82
US7395884B2Jul 8, 2008
High-strength/high toughness alloy steel drill bit blank
SMITH INTERNATIONAL11 citations82
US7798256B2Sep 21, 2010
Fixed cutter drill bit for abrasive applications
SMITH INTERNATIONAL9 citations81
US10350731B2Jul 16, 2019
Thermally stable diamond polycrystalline diamond constructions
SMITH INTERNATIONAL0 citations52
US7845059B2Dec 7, 2010
Method of forming impregnated diamond cutting structures
SMITH INTERNATIONAL0 citations51