Franck Leitman has been granted 3 US patents while listed as an inventor at L'Oreal. The first was granted in 1995 and the most recent in August 2000. Franck Leitman ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Franck Leitman in Tremblay-en-France, FR.