RZ

Rudolf Zink

CI Ciba-Geigy: 2 patents #70 of 464Top 20%
📍 Therwil, CH: #4 of 18 inventorsTop 25%
Overall (1989): #16,540 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4847378 Chromogenic polycyclic azamethines 1989-07-11
4806657 Process for the preparation of fluoran compounds which are substituted by basic groups 1989-02-21