Pierrick Guyomarc'h has been granted 9 US patents while listed as an inventor at Vygon. The first was granted in 2007 and the most recent in July 2017. Pierrick Guyomarc'h ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Pierrick Guyomarc'h in Ermont, FR.