Inventor · disambiguated record
Matthew R. Isbell
Also filed as: ISBELL MATTHEW R · ISBELL MATTHEW RAY
31 granted patents·1 pending application·1,919 citations·filing 1990–2014
98Inventor score
Top patents by PatentIndex Score
32 records- 0196US7497280B2Abrasive-impregnated cutting structure having anisotropic wear resistance and drag bit including sameBAKER HUGHES INC·Filed 2005·Granted Mar 3, 2009·59 cites·50 claims
- 0296US6510906B1Impregnated bit with PDC cutters in cone areaBAKER HUGHES INC·Filed 2000·Granted Jan 28, 2003·282 cites·54 claims
- 0396US6408958B1Superabrasive cutting assemblies including cutters of varying orientations and drill bits so equippedBAKER HUGHES INC·Filed 2000·Granted Jun 25, 2002·212 cites·40 claims
- 0493US8356398B2Modular hybrid drill bitBAKER HUGHES INC·Filed 2011·Granted Jan 22, 2013·26 cites·14 claims
- 0593US5479997AEarth-boring bit with improved cutting structureBAKER HUGHES INC·Filed 1994·Granted Jan 2, 1996·139 cites·18 claims
- 0693US5311958AEarth-boring bit with an advantageous cutting structureBAKER HUGHES INC·Filed 1992·Granted May 17, 1994·152 cites·21 claims
- 0791US6883623B2Earth boring apparatus and method offering improved gage trimmer protectionBAKER HUGHES INC·Filed 2002·Granted Apr 26, 2005·132 cites·51 claims
- 0889US6843333B2Impregnated rotary drag bitBAKER HUGHES INC·Filed 2002·Granted Jan 18, 2005·115 cites·37 claims
- 0989US5351768AEarth-boring bit with improved cutting structureBAKER HUGHES INC·Filed 1993·Granted Oct 4, 1994·100 cites·11 claims
- 1088US7762355B2Rotary drag bit and methods thereforBAKER HUGHES INC·Filed 2008·Granted Jul 27, 2010·32 cites·33 claims
- 1186US4984643AAnti-balling earth boring bitHUGHES TOOL CO·Filed 1990·Granted Jan 15, 1991·97 cites·10 claims
- 1282US7647991B2Cutting structure for earth-boring bit to reduce trackingBAKER HUGHES INC·Filed 2007·Granted Jan 19, 2010·19 cites·20 claims
- 1382US5592995AEarth-boring bit having shear-cutting heel elementsBAKER HUGHES INC·Filed 1995·Granted Jan 14, 1997·100 cites·21 claims
- 1480US8177001B2Earth-boring tools including abrasive cutting structures and related methodsMCCLAIN ERIC E·Filed 2011·Granted May 15, 2012·7 cites·24 claims
- 1580US5586612ARoller cone bit with positive and negative offset and smooth running configurationBAKER HUGHES INC·Filed 1995·Granted Dec 24, 1996·82 cites·9 claims
- 1678US7861809B2Rotary drag bit with multiple backup cuttersBAKER HUGHES INC·Filed 2008·Granted Jan 4, 2011·17 cites·89 claims
- 1778US5996713ARolling cutter bit with improved rotational stabilizationBAKER HUGHES INC·Filed 1997·Granted Dec 7, 1999·79 cites·27 claims
- 1876US5323865AEarth-boring bit with an advantageous insert cutting structureBAKER HUGHES INC·Filed 1992·Granted Jun 28, 1994·61 cites·9 claims
- 1975US5542485AEarth-boring bit with improved cutting structureBAKER HUGHES INC·Filed 1995·Granted Aug 6, 1996·68 cites·36 claims
- 2074US5695018AEarth-boring bit with negative offset and inverted gage cutting elementsBAKER HUGHES INC·Filed 1995·Granted Dec 9, 1997·66 cites·12 claims
- 2172US7954571B2Cutting structures for casing component drillout and earth-boring drill bits including sameBAKER HUGHES INC·Filed 2008·Granted Jun 7, 2011·11 cites·27 claims
- 2268US9359825B2Cutting element placement on a fixed cutter drill bit to reduce diamond table fractureGAVIA DAVID·Filed 2009·Granted Jun 7, 2016·11 cites·25 claims
- 2367US9085939B2Earth-boring tools attachable to a casing string and methods for their manufactureMCCLAIN ERIC E·Filed 2008·Granted Jul 21, 2015·4 cites·32 claims
- 2464US8662207B2Rotary drag bits including abrasive-impregnated cutting structuresBAKER HUGHES INC·Filed 2012·Granted Mar 4, 2014·1 cites·20 claims
- 2564US8333814B2Abrasive-impregnated cutting structure having anisotropic wear resistance and drag bit including sameBRACKIN VAN J·Filed 2009·Granted Dec 18, 2012·11 cites·20 claims
- 2655US6443246B1Long barrel inserts for earth-boring bitBAKER HUGHES INC·Filed 2000·Granted Sep 3, 2002·21 cites·23 claims
- 2754US9637979B2Rotary drag bits including abrasive-impregnated cutting structuresBAKER HUGHES INC·Filed 2014·Granted May 2, 2017·0 cites·22 claims
- 2849US10221629B2Polycrystalline super hard construction and a method for making sameELEMENT SIX LTD·Filed 2013·Granted Mar 5, 2019·0 cites·21 claims
- 2946USRE42445ECutting structure for earth-boring bit to reduce trackingBAKER HUGHES INC·Filed 2010·Granted Jun 14, 2011·0 cites·20 claims
- 3045US7066288B2Asymmetric compact for drill bitBAKER HUGHES INC·Filed 2002·Granted Jun 27, 2006·9 cites·20 claims
- 3142US7096981B2Alternating inclinations of compacts for drill bitBAKER HUGHES INC·Filed 2002·Granted Aug 29, 2006·6 cites·19 claims
- 3240US2009272582A1Modular hybrid drill bitBAKER HUGHES INC·Filed 2008·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →