TE

Thomas Ehlis

CI Ciba-Geigy: 1 patents #136 of 476Top 30%
Overall (1997): #68,868 of 185,788Top 40%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

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