HF

Hans-Helmut Friedrich

CI Ciba-Geigy: 1 patents #138 of 374Top 40%
📍 Herbstein, DE: #1 of 1 inventorsTop 100%
Overall (1982): #61,302 of 81,411Top 80%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4336148 Complex compound, process for their preparation, and their use Hermann O. Wirth 1982-06-22