Hyeon HEO has been granted 4 US patents while listed as an inventor at Mandom. The first was granted in 2016 and the most recent in May 2021. Hyeon HEO ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Hyeon HEO in Uijeongbu-si, KR.