JP

Johannes Pfenninger

CI Ciba-Geigy: 1 patents #150 of 464Top 35%
📍 Marly, DE: #1 of 1 inventorsTop 100%
Overall (1989): #93,519 of 140,708Top 70%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4810802 Process for the preparation of brominated pyrrolo-[3,4-c]-pyrroles and mixtures thereof Olof Wallquist, Abul Iqbal, Alain C. Rochat 1989-03-07