Hee Wook Ryu has been granted 3 US patents while listed as an inventor at Amorepacific. The first was granted in 1993 and the most recent in June 2020. Hee Wook Ryu ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Hee Wook Ryu in Seojong-myeon, KR.