Inventor · disambiguated record
John Roulston
Also filed as: ROULSTON JOHN · ROULSTON JOHN S
8 granted patents·5 pending applications·361 citations·filing 1996–2018
90Inventor score
Files withADVANCED MINERALS CORP7IMERYS FILTRATION MINERALS INC1NYAMEKYE GEORGE ASANTE1WORLD MINERALS INC1
Top patents by PatentIndex Score
13 records- 0194US6464770B1Perlite products with controlled particle size distributionADVANCED MINERALS CORP·Filed 2000·Granted Oct 15, 2002·71 cites·26 claims
- 0292US5776353AAdvanced composite filtration mediaADVANCED MINERALS CORP·Filed 1996·Granted Jul 7, 1998·84 cites·56 claims
- 0390US6712898B2Perlite products with controlled particle size distributionADVANCED MINERALS CORP·Filed 2002·Granted Mar 30, 2004·38 cites·7 claims
- 0486US6524489B1Advanced composite mediaADVANCED MINERALS CORP·Filed 1998·Granted Feb 25, 2003·47 cites·77 claims
- 0582US6712974B1Filterable composite adsorbentsADVANCED MINERALS CORP·Filed 1998·Granted Mar 30, 2004·52 cites·60 claims
- 0676US7303600B2Unexpanded perlite ore polishing composition and methodsADVANCED MINERALS CORP·Filed 2003·Granted Dec 4, 2007·7 cites·20 claims
- 0776US6140040AMethod of mechanically separating microparticles suspended in fluids using particulate mediaADVANCED MINERALS CORP·Filed 1996·Granted Oct 31, 2000·55 cites·35 claims
- 0874US8410017B2Filter aids made from low permeability diatomitesNYAMEKYE GEORGE ASANTE·Filed 2008·Granted Apr 2, 2013·7 cites·12 claims
- 0946US2020206665A1High density perlite filter aidIMERYS FILTRATION MINERALS INC·Filed 2018·Application pending·0 cites
- 1046US2004055957A1Filterable composite adsorbentsFiled 2003·Application pending·0 cites
- 1144US2004099184A1Perlite products with controlled particle size distributionFiled 2003·Application pending·0 cites
- 1243US2003203337A1Unexpanded perlite ore polishing composition and methodsFiled 2002·Application pending·0 cites
- 1342US2010107931A1Mineral ore expansion using microwave energyWORLD MINERALS INC·Filed 2008·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →