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Patent applications and USPTO patent grants for Zijl; Adolf Daan.The latest application filed is for "process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series".
Patent | Date |
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Process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series Grant 8,779,182 - Koole , et al. July 15, 2 | 2014-07-15 |
Process For The Simultaneous Production Of Different Mixtures Of Diisocyanate Isomers Of The Diphenylmethane Series App 20110224456 - Koole; Johannes Lodewijk ;   et al. | 2011-09-15 |
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