Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Ju-man Song — 2 Patents in 2021

HCHodogaya Chemical Co.: 2 patents #3 of 23Top 15%
SCSfc Co.: 2 patents #7 of 40Top 20%
Cheongju-si, KR: #26 of 170 inventorsTop 20%
Overall (2021): #144,182 of 548,734Top 30%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11158811 Organic electroluminescent device Shuichi Hayashi, Naoaki Kabasawa, Daizou Kanda, Shunji Mochizuki, Soon-Wook Cha +2 more 2021-10-26
10892420 Organic electroluminescent device Shuichi Hayashi, Naoaki Kabasawa, Soon-Wook Cha, Sang Woo Park, Kyung-seok Jeon 2021-01-12