KH

Klaus Hannemann

CI Ciba-Geigy: 1 patents #136 of 476Top 30%
Overall (1997): #117,532 of 185,788Top 65%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5690699 Azo dye mixtures and their use Urs Lehmann 1997-11-25