HF

Hans-Helmut Friedrich

CI Ciba-Geigy: 1 patents #136 of 476Top 30%
📍 Herbstein, DE: #1 of 4 inventorsTop 25%
Overall (1997): #145,616 of 185,788Top 80%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5618778 Additives for lubricants Hermann O. Wirth 1997-04-08