MC

Michel M. L. Champenois

PK Produits Chimiques Uging Kuhlmann: 1 patents #44 of 118Top 40%
Overall (All Time): #4,126,285 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4240959 1,2-Dialkyl-3-phenyl-5-[4-(N-alkyl or N,N-dialkyl)amino-2-benzoylamino-phenylazo]pyrazolium dyestuffs — 1980-12-23