Sylvain Lefebvre has been granted 23 US patents while listed as an inventor at Microsoft. The first was granted in 2008 and the most recent in October 2025. Sylvain Lefebvre ranks #178,160 of 4,157,543 US inventors in our database (top 4.3%). Patent records list Sylvain Lefebvre in La Fouillouse, WA, FR.