PR

Peter Rohringer

CI Ciba-Geigy: 1 patents #136 of 476Top 30%
Overall (1997): #93,579 of 185,788Top 55%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5622749 Fluorescent whitening of paper Thomas Ehlis, Josef Zelger 1997-04-22