HL

Horst Langfeld

CI Ciba-Geigy: 1 patents #136 of 476Top 30%
Overall (1997): #139,601 of 185,788Top 80%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5606034 Process for the preparation of azo dyes Karl Friedrich Haarburger, Herbert Mauser 1997-02-25