FN

Friedhelm Niemann

CI Ciba-Geigy: 1 patents #1,572 of 2,867Top 55%
📍 Friedrichsdorf, DE: #79 of 128 inventorsTop 65%
Overall (All Time): #3,845,066 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5092903 Process for dyeing or printing blends of cellulosic fibre materials and silk with dihalo-propionamido or halo-acryl amido reactive dyes 1992-03-03