Inventor · disambiguated record
Thomas W. Oldham
Also filed as: OLDHAM THOMAS W · OLDHAM THOMAS WALTER
33 granted patents·4 pending applications·2,126 citations·filing 1987–2013
98Inventor score
Top patents by PatentIndex Score
37 records- 0198US8147572B2Thermally stable diamond polycrystalline diamond constructionsEYRE RONALD K·Filed 2007·Granted Apr 3, 2012·67 cites·38 claims
- 0298US7661491B2High-strength, high-toughness matrix bit bodiesSMITH INTERNATIONAL·Filed 2007·Granted Feb 16, 2010·55 cites·29 claims
- 0398US7377341B2Thermally stable ultra-hard material compact constructionSMITH INTERNATIONAL·Filed 2005·Granted May 27, 2008·244 cites·31 claims
- 0497US7754333B2Thermally stable diamond polycrystalline diamond constructionsSMITH INTERNATIONAL·Filed 2004·Granted Jul 13, 2010·102 cites·37 claims
- 0597US7250069B2High-strength, high-toughness matrix bit bodiesSMITH INTERNATIONAL·Filed 2003·Granted Jul 31, 2007·73 cites·15 claims
- 0696US7044243B2High-strength/high-toughness alloy steel drill bit blankSMITH INTERNATIONAL·Filed 2003·Granted May 16, 2006·94 cites·21 claims
- 0796US4836307AHard facing for milled tooth rock bitsSMITH INTERNATIONAL·Filed 1987·Granted Jun 6, 1989·99 cites·8 claims
- 0895US6375706B2Composition for binder material particularly for drill bit bodiesSMITH INTERNATIONAL·Filed 2001·Granted Apr 23, 2002·128 cites·8 claims
- 0995US6287360B1High-strength matrix bodySMITH INTERNATIONAL·Filed 1998·Granted Sep 11, 2001·215 cites·48 claims
- 1094US8056650B2Thermally stable ultra-hard material compact constructionMIDDLEMISS STEWART N·Filed 2010·Granted Nov 15, 2011·19 cites·24 claims
- 1194US7473287B2Thermally-stable polycrystalline diamond materials and compactsSMITH INTERNATIONAL·Filed 2004·Granted Jan 6, 2009·136 cites·10 claims
- 1293US7828088B2Thermally stable ultra-hard material compact constructionSMITH INTERNATIONAL·Filed 2008·Granted Nov 9, 2010·39 cites·20 claims
- 1392US7395884B2High-strength/high toughness alloy steel drill bit blankSMITH INTERNATIONAL·Filed 2006·Granted Jul 8, 2008·11 cites·21 claims
- 1491US7475743B2High-strength, high-toughness matrix bit bodiesSMITH INTERNATIONAL·Filed 2006·Granted Jan 13, 2009·40 cites·17 claims
- 1591US5765095APolycrystalline diamond bit manufacturingSMITH INTERNATIONAL·Filed 1996·Granted Jun 9, 1998·169 cites·39 claims
- 1691US5494122AComposite nozzles for rock bitsSMITH INTERNATIONAL·Filed 1994·Granted Feb 27, 1996·130 cites·4 claims
- 1791US4944774AHard facing for milled tooth rock bitsSMITH INTERNATIONAL·Filed 1989·Granted Jul 31, 1990·60 cites·23 claims
- 1889US8562703B2Thermally stable diamond polycrystalline diamond constructionsEYRE RONALD K·Filed 2012·Granted Oct 22, 2013·5 cites·19 claims
- 1989US7997358B2Bonding of cutters in diamond drill bitsSMITH INTERNATIONAL·Filed 2009·Granted Aug 16, 2011·14 cites·33 claims
- 2088US7350599B2Impregnated diamond cutting structuresSMITH INTERNATIONAL·Filed 2004·Granted Apr 1, 2008·82 cites·15 claims
- 2187US6772849B2Protective overlay coating for PDC drill bitsSMITH INTERNATIONAL·Filed 2001·Granted Aug 10, 2004·85 cites·18 claims
- 2283US6461401B1Composition for binder material particularly for drill bit bodiesSMITH INTERNATIONAL·Filed 2000·Granted Oct 8, 2002·64 cites·19 claims
- 2382US4869329ARock bit insertSMITH INTERNATIONAL·Filed 1988·Granted Sep 26, 1989·39 cites·6 claims
- 2481US7644786B2Diamond bit steel body cutter pocket protectionSMITH INTERNATIONAL·Filed 2006·Granted Jan 12, 2010·17 cites·29 claims
- 2576US6394202B2Drill bit having diamond impregnated inserts primary cutting structureSMITH INTERNATIONAL·Filed 1999·Granted May 28, 2002·67 cites·27 claims
- 2675US7625521B2Bonding of cutters in drill bitsSMITH INTERNATIONAL·Filed 2003·Granted Dec 1, 2009·15 cites·55 claims
- 2773US6725953B2Drill bit having diamond impregnated inserts primary cutting structureSMITH INTERNATIONAL·Filed 2002·Granted Apr 27, 2004·39 cites·30 claims
- 2870US9145739B2Fixed cutter drill bit for abrasive applicationsHOFFMASTER CARL·Filed 2011·Granted Sep 29, 2015·4 cites·42 claims
- 2969US7798256B2Fixed cutter drill bit for abrasive applicationsSMITH INTERNATIONAL·Filed 2006·Granted Sep 21, 2010·9 cites·82 claims
- 3059US8235149B2Diamond bit steel body cutter pocket protectionLOCKSTEDT ALAN W·Filed 2009·Granted Aug 7, 2012·5 cites·23 claims
- 3157US10350731B2Thermally stable diamond polycrystalline diamond constructionsSMITH INTERNATIONAL·Filed 2013·Granted Jul 16, 2019·0 cites·20 claims
- 3247US2005230150A1Coated diamonds for use in impregnated diamond bitsSMITH INTERNATIONAL·Filed 2004·Application pending·0 cites
- 3345US2011005837A1Fixed cutter drill bit for abrasive applicationsSMITH INTERNATIONAL·Filed 2010·Application pending·0 cites
- 3444US2004244540A1Drill bit body with multiple bindersFiled 2003·Application pending·0 cites
- 3543US7845059B2Method of forming impregnated diamond cutting structuresSMITH INTERNATIONAL·Filed 2008·Granted Dec 7, 2010·0 cites·20 claims
- 3639US2007157763A1Drill bit with cutter pockets formed by plunge edmSMITH INTERNATIONAL·Filed 2007·Application pending·0 cites
- 3738US8881851B2Thermally-stable polycrystalline diamond materials and compactsBELNAP JOHN DANIEL·Filed 2008·Granted Nov 11, 2014·0 cites·21 claims
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