Frederic Stoeckel has been granted 6 US patents while listed as an inventor at Blueleaf. The first was granted in 1993 and the most recent in May 2004. Frederic Stoeckel ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Frederic Stoeckel in Saint-Martin-d'Hères, FR.