Stéphane Lanfranchi has been granted 2 US patents while listed as an inventor at Viaccess. The first was granted in 2011 and the most recent in July 2013. Stéphane Lanfranchi ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Stéphane Lanfranchi in Paris, FR.