Assignee
JOHNSON DAVID WILLIAM
GB·8 granted patents·12 citations·filing 2009–2012
Top patents by PatentIndex Score
8 records- 0182US8907121B2Methyl methacrylate purification processJOHNSON DAVID WILLIAM·Filed 2009·Granted Dec 9, 2014·4 cites·18 claims
- 0276US8940924B2Mixed oxide catalyst and a process for the production of ethylenically unsaturated carboxylic acids or estersJOHNSON DAVID WILLIAM·Filed 2011·Granted Jan 27, 2015·2 cites·16 claims
- 0372US8933179B2Method of producing arcylic and methacrylic acidJOHNSON DAVID WILLIAM·Filed 2010·Granted Jan 13, 2015·1 cites·16 claims
- 0470US8592624B2Production of ethylenically unsaturated acids or esters thereofJOHNSON DAVID WILLIAM·Filed 2009·Granted Nov 26, 2013·1 cites·13 claims
- 0569US9175686B2Priming valve system for pre-priming centrifugal pump intakesJOHNSON DAVID WILLIAM·Filed 2012·Granted Nov 3, 2015·2 cites·17 claims
- 0668US8329813B2Thermal reduction of fluoroether carboxylic acids or salts from fluoropolymer dispersionsJOHNSON DAVID WILLIAM·Filed 2010·Granted Dec 11, 2012·2 cites·23 claims
- 0755US9216938B2Process for the production of (meth)acrylic acid and derivatives and polyers produced therefromJOHNSON DAVID WILLIAM·Filed 2012·Granted Dec 22, 2015·0 cites·18 claims
- 0854US9174913B2Process for the production of methacrylic acid and its derivatives and polymers produced therefromJOHNSON DAVID WILLIAM·Filed 2011·Granted Nov 3, 2015·0 cites·13 claims
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