Inventor · disambiguated record
Mitchell J. Willis
Also filed as: WILLIS MITCHELL · WILLIS MITCHELL J · WILLIS MITCHELL JAMES
25 granted patents·2 pending applications·610 citations·filing 1986–2018
97Inventor score
Top patents by PatentIndex Score
27 records- 0191US9682366B2Method of producing FCC catalysts with reduced attrition ratesBASF CORP·Filed 2016·Granted Jun 20, 2017·4 cites·20 claims
- 0291US4738726ATreatment of clays with cationic polymers to prepare high bulking pigmentsENGELHARD CORP·Filed 1986·Granted Apr 19, 1988·69 cites·46 claims
- 0390US5411587APaper coating kaolin pigments their preparation and useENGELHARD CORP·Filed 1994·Granted May 2, 1995·52 cites·4 claims
- 0489US5169443APaper coating kaolin pigments there preparation and useENGELHARD CORP·Filed 1991·Granted Dec 8, 1992·55 cites·4 claims
- 0584US5011534ACalcined kaolin clay filler pigment for enhancing opacity and printing properties of newsprint and mechanical papersENGELHARD CORP·Filed 1990·Granted Apr 30, 1991·50 cites·3 claims
- 0683US9403161B2Method of producing FCC catalysts with reduced attrition ratesBASF CORP·Filed 2013·Granted Aug 2, 2016·3 cites·20 claims
- 0782US6696378B2Fluid catalytic cracking catalyst manufacturing processENGELHARD CORP·Filed 2001·Granted Feb 24, 2004·27 cites·40 claims
- 0882US5535890AMethod for separating mixture of finely divided mineralsENGELHARD CORP·Filed 1994·Granted Jul 16, 1996·37 cites·19 claims
- 0979US5603411AMethod for separating mixture of finely divided mineralsENGELHARD CORP·Filed 1996·Granted Feb 18, 1997·45 cites·18 claims
- 1078US8940156B2Thermochemical structuring of matrix components for FCC catalystsFOLMAR KENNETH·Filed 2011·Granted Jan 27, 2015·4 cites·21 claims
- 1177US5749958ADelaminated kaolin pigments their preparation and use in paper coatingENGELHARD CORP·Filed 1996·Granted May 12, 1998·40 cites·8 claims
- 1276US10807076B2Mesoporous FCC catalysts with excellent attrition resistanceBASF CORP·Filed 2018·Granted Oct 20, 2020·1 cites·10 claims
- 1376US5645635ADelaminated kaolin pigments, their preparation and use in paper filling applicationsENGELHARD CORP·Filed 1995·Granted Jul 8, 1997·39 cites·7 claims
- 1476US4781298AProcess for beneficiating clay at high solidsENGELHARD CORP·Filed 1986·Granted Nov 1, 1988·37 cites·28 claims
- 1572US8372269B2Heavy metals trapping co-catalyst for FCC processesBASF CORP·Filed 2009·Granted Feb 12, 2013·2 cites·20 claims
- 1667US5328506APigment products in an agglomerated form and use thereof in bulk shipmentsENGELHARD CORP·Filed 1992·Granted Jul 12, 1994·23 cites·21 claims
- 1766US5938833AChemical process for fractionating mineral particles based on particle sizeENGELHARD CORP·Filed 1997·Granted Aug 17, 1999·25 cites·11 claims
- 1865US5342443AMethod for bleaching kaolin clayENGELHARD CORP·Filed 1993·Granted Aug 30, 1994·16 cites·8 claims
- 1962US4784758AProcess for removing magnetic particles from a suspension of solids in a liquidENGELHARD CORP·Filed 1986·Granted Nov 15, 1988·19 cites·13 claims
- 2058US5584394AColored titaniferous coating pigment obtained as a flocculated by-product in a kaolin purification processENGELHARD CORP·Filed 1995·Granted Dec 17, 1996·17 cites·5 claims
- 2153US2015101961A1Mesoporous fcc catalysts with excellent attrition resistanceBASF CORP·Filed 2014·Application pending·0 cites
- 2246US5997626ALow abrasion calcined kaolin pigments and enhanced filtration methodENGELHARD CORP·Filed 1998·Granted Dec 7, 1999·14 cites·11 claims
- 2343US5922207AFilter aid for clay processingENGELHARD CORP·Filed 1998·Granted Jul 13, 1999·11 cites·6 claims
- 2443US5391526ASitu method for producing hydrosulfite bleach and use thereofENGELHARD CORP·Filed 1994·Granted Feb 21, 1995·8 cites·5 claims
- 2540US5688315AColored titaniferous coating pigment obtained as a flocculated by-product in a kaolin purification processENGELHARD CORP·Filed 1996·Granted Nov 18, 1997·5 cites·7 claims
- 2640US5145814AIn situ method for producing hydrosulfite beach and use thereofENGELHARD CORP·Filed 1991·Granted Sep 8, 1992·7 cites·7 claims
- 2735US2012227629A1Beneficial Thermo-Chemical Treatment of Kaolin with Ammonium PolyphosphateFOLMAR KENNETH·Filed 2011·Application pending·0 cites
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