UK

Urs Karlen

CI Ciba-Geigy: 1 patents #138 of 374Top 40%
📍 Stalden, CH: #1 of 1 inventorsTop 100%
Overall (1982): #26,166 of 81,411Top 35%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4351774 Process for the production of methoxyanthraquinones Peter Baumgartner, Urs Keller 1982-09-28