Inventor · disambiguated record
John D. Schofield
Also filed as: SCHOFIELD JOHN D · SCHOFIELD JOHN DAVID
27 granted patents·3 pending applications·707 citations·filing 1980–2014
97Inventor score
Top patents by PatentIndex Score
30 records- 0196US4461647AFluidizing agentICI LTD·Filed 1982·Granted Jul 24, 1984·60 cites·12 claims
- 0295US7095044B2Field effect transistors and materials and methods for their manufactureMERCK PATENT GMBH·Filed 2001·Granted Aug 22, 2006·142 cites·10 claims
- 0395US5700395ADispersantsZENECA LTD·Filed 1994·Granted Dec 23, 1997·61 cites·10 claims
- 0493US6197877B1DispersantsZENECA LTD·Filed 1997·Granted Mar 6, 2001·69 cites·39 claims
- 0593US4861380ACompositionICI PLC·Filed 1988·Granted Aug 29, 1989·39 cites·11 claims
- 0691US4645611ADispersionICI PLC·Filed 1985·Granted Feb 24, 1987·51 cites·10 claims
- 0789US4349389ADispersible inorganic pigmentICI LTD·Filed 1980·Granted Sep 14, 1982·38 cites·7 claims
- 0887US5300255ASurfactant products of poly(hydroxyalkanecarboxylic acid) phosphate estersICI PLC·Filed 1987·Granted Apr 5, 1994·32 cites·15 claims
- 0982US5837046AInk jet printer ink compositionXAAR TECHNOLOGY LTD·Filed 1997·Granted Nov 17, 1998·43 cites·15 claims
- 1081US5753022AProcessZENECA LTD·Filed 1994·Granted May 19, 1998·16 cites·15 claims
- 1176US6197103B1Pigment compositionZENECA LTD·Filed 1994·Granted Mar 6, 2001·33 cites·8 claims
- 1275US5536445ASurfactant and dispersible or emulsifiable compositions employing surfactantZENECA LIMTED·Filed 1993·Granted Jul 16, 1996·38 cites·11 claims
- 1374US7732514B2Filler compositesLUBRIZOL CORP·Filed 2003·Granted Jun 8, 2010·9 cites·18 claims
- 1474US7008988B2Paint compositionsLUBRIZOL CORP·Filed 2002·Granted Mar 7, 2006·11 cites·10 claims
- 1573US4797440ADispersed particulate compositionICI PLC·Filed 1987·Granted Jan 10, 1989·28 cites·7 claims
- 1663US5785894ADispersant for dispersing particulate solidsZENECA LTD·Filed 1995·Granted Jul 28, 1998·14 cites·17 claims
- 1761US9115259B2Filled poly vinyl chloride compositionTHETFORD DEAN·Filed 2009·Granted Aug 25, 2015·1 cites·9 claims
- 1853US2016268633A1Copolymers with a polyacrylic acid backbone as performance enhancers for lithium-ion cellsLUBRIZOL ADVANCED MAT INC·Filed 2014·Application pending·0 cites
- 1952US9718984B2Multi-acid multi-base graft copolymer dispersantsLUBRIZOL ADVANCED MAT INC·Filed 2014·Granted Aug 1, 2017·0 cites·12 claims
- 2052US2010048781A1Filled Plastic Material CompositionLUBRIZOL LTD·Filed 2007·Application pending·0 cites
- 2151US5954870APigment compositionZENECA LTD·Filed 1995·Granted Sep 21, 1999·5 cites·8 claims
- 2248US7442327B2Use of dispersions in making electronic devicesLUBRIZOL CORP·Filed 2004·Granted Oct 28, 2008·2 cites·13 claims
- 2346US4954177ADispersionICI PLC·Filed 1988·Granted Sep 4, 1990·8 cites·16 claims
- 2443US9044720B2Dispersant compositionSUNDERLAND PATRICK J·Filed 2011·Granted Jun 2, 2015·0 cites·8 claims
- 2542US6770704B2ThickenersAVECIA LTD·Filed 2001·Granted Aug 3, 2004·0 cites·24 claims
- 2639US6117935ARheology modifier for solvent-based coatingsZENECA LTD·Filed 1995·Granted Sep 12, 2000·4 cites·16 claims
- 2739US2005256226A1Phosphate esters dispersantsTHETFORD DEAN·Filed 2003·Application pending·0 cites
- 2832US6191253B1Polyether phosphatesZENECA LTD·Filed 1998·Granted Feb 20, 2001·2 cites·5 claims
- 2929USRE44769EDispersantsTHETFORD DEAN·Filed 1997·Granted Feb 18, 2014·0 cites·39 claims
- 3028US5380363APigment compositionFRANCOLOR PIGMENTS SA·Filed 1993·Granted Jan 10, 1995·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →