Inventor · disambiguated record
Madapusi K. Keshavan
Also filed as: ANDERSON NATHAN R · KESHAVAN MADAPUSI · KESHAVAN MADAPUSI K · KESHAVAN MADAPUSI KANDE
111 granted patents·19 pending applications·4,711 citations·filing 1983–2023
99Inventor score
Top patents by PatentIndex Score
130 records- 0199US8091655B2Rolling cutterSHEN YUELIN·Filed 2010·Granted Jan 10, 2012·49 cites·30 claims
- 0299US7703559B2Rolling cutterSMITH INTERNATIONAL·Filed 2006·Granted Apr 27, 2010·109 cites·16 claims
- 0398US8413746B2Rolling cutterSHEN YUELIN·Filed 2011·Granted Apr 9, 2013·38 cites·17 claims
- 0498US7493973B2Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistanceSMITH INTERNATIONAL·Filed 2005·Granted Feb 24, 2009·148 cites·28 claims
- 0597US11920223B2Tungsten tetraboride composite matrix and uses thereofUNIV CALIFORNIA·Filed 2022·Granted Mar 5, 2024·1 cites·20 claims
- 0697US11174538B2Tungsten tetraboride composite matrix and uses thereofUNIV CALIFORNIA·Filed 2018·Granted Nov 16, 2021·7 cites·20 claims
- 0797US9033070B2Rolling cutterSMITH INTERNATIONAL·Filed 2014·Granted May 19, 2015·18 cites·20 claims
- 0897US8800691B2Rolling cutterSMITH INTERNATIONAL·Filed 2013·Granted Aug 12, 2014·18 cites·20 claims
- 0997US7942219B2Polycrystalline diamond constructions having improved thermal stabilitySMITH INTERNATIONAL·Filed 2007·Granted May 17, 2011·72 cites·37 claims
- 1097US7533740B2Thermally stable polycrystalline diamond cutting elements and bits incorporating the sameSMITH INTERNATIONAL·Filed 2006·Granted May 19, 2009·167 cites·39 claims
- 1197US5370195ADrill bit inserts enhanced with polycrystalline diamondSMITH INTERNATIONAL·Filed 1993·Granted Dec 6, 1994·365 cites·33 claims
- 1296US10287825B2Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elementsSMITH INTERNATIONAL·Filed 2015·Granted May 14, 2019·18 cites·22 claims
- 1396US9776917B2Coating on PDC/TSP cutter for accelerated leachingSMITH INTERNATIONAL·Filed 2015·Granted Oct 3, 2017·28 cites·20 claims
- 1496US8002859B2Manufacture of thermally stable cutting elementsSMITH INTERNATIONAL·Filed 2008·Granted Aug 23, 2011·47 cites·8 claims
- 1596US7435478B2Cutting structuresSMITH INTERNATIONAL·Filed 2005·Granted Oct 14, 2008·83 cites·18 claims
- 1696US6892836B1Cutting element having a substrate, a transition layer and an ultra hard material layerSMITH INTERNATIONAL·Filed 2000·Granted May 17, 2005·143 cites·23 claims
- 1796US6193001B1Method for forming a non-uniform interface adjacent ultra hard materialSMITH INTERNATIONAL·Filed 1998·Granted Feb 27, 2001·203 cites·52 claims
- 1896US4836307AHard facing for milled tooth rock bitsSMITH INTERNATIONAL·Filed 1987·Granted Jun 6, 1989·99 cites·8 claims
- 1995USRE47369ERolling cutterSMITH INTERNATIONAL·Filed 2017·Granted Apr 30, 2019·6 cites·54 claims
- 2095US8955734B2Ball hole welding using the friction stir welding (FSW) processSMITH INTERNATIONAL·Filed 2013·Granted Feb 17, 2015·12 cites·5 claims
- 2195US5833021ASurface enhanced polycrystalline diamond composite cuttersSMITH INTERNATIONAL·Filed 1996·Granted Nov 10, 1998·222 cites·21 claims
- 2294US12031384B2Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elementsSCHLUMBERGER TECHNOLOGY CORP·Filed 2021·Granted Jul 9, 2024·3 cites·19 claims
- 2394US11215012B2Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elementsSMITH INTERNATIONAL·Filed 2019·Granted Jan 4, 2022·8 cites·22 claims
- 2494US8157029B2Thermally stable polycrystalline diamond cutting elements and bits incorporating the sameZHANG YOUHE·Filed 2010·Granted Apr 17, 2012·15 cites·26 claims
- 2594US7749947B2High performance rock bit greaseSMITH INTERNATIONAL·Filed 2006·Granted Jul 6, 2010·20 cites·16 claims
- 2694US5830813AMethod of making a polycrystalline cubic boron nitride cutting toolSMITH INTERNATIONAL·Filed 1997·Granted Nov 3, 1998·65 cites·14 claims
- 2794US5593474AComposite cemented carbideSMITH INTERNATIONAL·Filed 1988·Granted Jan 14, 1997·149 cites·6 claims
- 2893US8028771B2Polycrystalline diamond constructions having improved thermal stabilitySMITH INTERNATIONAL·Filed 2008·Granted Oct 4, 2011·33 cites·17 claims
- 2993US6991049B2Cutting elementSMITH INTERNATIONAL·Filed 2002·Granted Jan 31, 2006·79 cites·28 claims
- 3093US5766394AMethod for forming a polycrystalline layer of ultra hard materialSMITH INTERNATIONAL·Filed 1995·Granted Jun 16, 1998·135 cites·18 claims
- 3193US5535838AHigh performance overlay for rock drilling bitsSMITH INTERNATIONAL·Filed 1994·Granted Jul 16, 1996·144 cites·20 claims
- 3292US12344921B2Tungsten tetraboride composite matrix and uses thereofUNIV CALIFORNIA·Filed 2023·Granted Jul 1, 2025·0 cites·20 claims
- 3392US9393674B2Cemented carbide composite for a downhole toolSMITH INTERNATIONAL·Filed 2014·Granted Jul 19, 2016·13 cites·20 claims
- 3492US8066087B2Thermally stable ultra-hard material compact constructionsGRIFFO ANTHONY·Filed 2007·Granted Nov 29, 2011·52 cites·10 claims
- 3592US7694757B2Thermally stable polycrystalline diamond materials, cutting elements incorporating the same and bits incorporating such cutting elementsSMITH INTERNATIONAL·Filed 2006·Granted Apr 13, 2010·39 cites·52 claims
- 3692US7017677B2Coarse carbide substrate cutting elements and method of forming the sameSMITH INTERNATIONAL·Filed 2003·Granted Mar 28, 2006·109 cites·31 claims
- 3792US6199645B1Engineered enhanced inserts for rock drilling bitsSMITH INTERNATIONAL·Filed 1998·Granted Mar 13, 2001·125 cites·13 claims
- 3892US5158148ADiamond-containing cemented metal carbideSMITH INTERNATIONAL·Filed 1990·Granted Oct 27, 1992·63 cites·5 claims
- 3991US10267095B2Cemented carbide composite for a downhole toolSMITH INTERNATIONAL·Filed 2016·Granted Apr 23, 2019·3 cites·20 claims
- 4091US8887837B2Cutting structures for fixed cutter drill bit and other downhole cutting toolsSMITH INTERNATIONAL·Filed 2013·Granted Nov 18, 2014·10 cites·23 claims
- 4191US8309050B2Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistanceKESHAVAN MADAPUSI K·Filed 2009·Granted Nov 13, 2012·30 cites·20 claims
- 4291US6460637B1Engineered enhanced inserts for rock drilling bitsSMITH INTERNATIONAL·Filed 2000·Granted Oct 8, 2002·86 cites·20 claims
- 4391US5494122AComposite nozzles for rock bitsSMITH INTERNATIONAL·Filed 1994·Granted Feb 27, 1996·130 cites·4 claims
- 4491US4944774AHard facing for milled tooth rock bitsSMITH INTERNATIONAL·Filed 1989·Granted Jul 31, 1990·60 cites·23 claims
- 4590US6484826B1Engineered enhanced inserts for rock drilling bitsSMITH INTERNATIONAL·Filed 2000·Granted Nov 26, 2002·82 cites·36 claims
- 4690US5051112AHard facingSMITH INTERNATIONAL·Filed 1990·Granted Sep 24, 1991·73 cites·9 claims
- 4789US8197936B2Cutting structuresKESHAVAN MADAPUSI K·Filed 2008·Granted Jun 12, 2012·32 cites·31 claims
- 4889US7407012B2Thermally stable diamond cutting elements in roller cone drill bitsSMITH INTERNATIONAL·Filed 2005·Granted Aug 5, 2008·37 cites·23 claims
- 4989US4526618AAbrasion resistant coating compositionUNION CARBIDE CORP·Filed 1983·Granted Jul 2, 1985·55 cites·4 claims
- 5088US7350599B2Impregnated diamond cutting structuresSMITH INTERNATIONAL·Filed 2004·Granted Apr 1, 2008·82 cites·15 claims
Showing the top 50 of 130 patent records by PatentIndex Score.
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