Donghun Ryu has been granted 2 US patents while listed as an inventor at Tomocube. The first was granted in 2022 and the most recent in November 2024. Donghun Ryu ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Donghun Ryu in Daejeon, KR.