Olaf Grassmann has been granted 15 US patents while listed as an inventor at Hoffmann-La Roche. The first was granted in 2008 and the most recent in November 2025. Olaf Grassmann ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Olaf Grassmann in Soest, NJ, DE.