Franck Raeppel has been granted 13 US patents while listed as an inventor at Methylgene. The first was granted in 2010 and the most recent in November 2025. Franck Raeppel ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Franck Raeppel in Montréal, QC, CA.