Ji-Eon Ryu has been granted 6 US patents while listed as an inventor at Infopia Co.. The first was granted in 2012 and the most recent in April 2016. Ji-Eon Ryu ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Ji-Eon Ryu in Anyang-si, KR.