Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JC

Ji-Young Choung — 55 Patents

Applied Materials: 27 patents #426 of 7,310Top 6%
Samsung: 27 patents #4,599 of 75,807Top 7%
Overall (All Time): #45,394 of 4,157,543Top 2%
55 Patents All Time

Issued Patents All Time

Showing 51–55 of 55 patents

Patent #TitleCo-InventorsDate
8785954 Organic light-emitting device Joon-Gu Lee, Won-Jong Kim, Jin-Baek Choi, Yeon Hwa Lee, Young-Woo Song +1 more 2014-07-22
8624259 Organic light-emitting display device Yeon Hwa Lee, Won-Jong Kim, Joon-Gu Lee, Darby Choi, Young-Woo Song +1 more 2014-01-07
8593058 Organic light-emitting display device Jin-Baek Choi, Won-Jong Kim, Joon-Gu Lee, Yeon Hwa Lee, Young-Woo Song +1 more 2013-11-26
8502205 Organic light emitting diode device and method of manufacturing the same Joon-Gu Lee, Jong-Hyuk Lee, Won-Jong Kim, Kyu-Ilwan Kwang, Yong-Tak Kim +1 more 2013-08-06
8330172 Organic light emitting diode display and manufacturing method thereof Jin-Baek Choi, Joon-Gu Lee, Se-Jin Cho, Won-Jong Kim, Hee-Joo Ko +3 more 2012-12-11