Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
WJ

Won-Jang JEONG — 33 Patents

LCLt Materials Co.: 31 patents #1 of 41Top 3%
KAIST: 2 patents #4,169 of 11,619Top 40%
CRCrystalgenomics: 1 patents #12 of 33Top 40%
DCDongwha Pharm. Ind. Co.: 1 patents #30 of 55Top 55%
Yongin-si, KR: #653 of 9,683 inventorsTop 7%
Overall (All Time): #105,480 of 4,157,543Top 3%
33 Patents All Time
Won-Jang JEONG has been granted 33 US patents while listed as an inventor at Lt Materials Co.. The first was granted in 2005 and the most recent in September 2025. Won-Jang JEONG ranks #105,480 of 4,157,543 US inventors in our database (top 2.5%). Patent records list Won-Jang JEONG in Yongin-si, KR.

Patents per Year

Patents granted per year, 2005 to 2025Bar chart with a peak of 8 patents in 2022.peak 82005: 1 patents20052011: 1 patents20112021: 3 patents20212022: 8 patents20222023: 5 patents20232024: 7 patents20242025: 8 patents2025

Issued Patents All Time

Showing 1–25 of 33 patents

Patent #TitleCo-InventorsDate
12415823 Heterocyclic compound and organic light-emitting device comprising same Gi-Back LEE, Yu-Jin HEO 2025-09-16
12415814 Heterocyclic compound and organic light emitting device comprising same Yun-Ji Lee, Min-Ji PARK, Dong-Jun KIM 2025-09-16
12410186 Compound, organic optoelectronic element, and display device Nam-Jin LEE, Young Jin Lee 2025-09-09
12404280 Heterocyclic compound, and organic light-emitting element using same Seong-Jong PARK, Hyun-Ju LA, Dong-Jun KIM 2025-09-02
12404278 Heterocyclic compound and organic light-emitting device comprising same Yun-Ji Lee, Min-Ji PARK, Dong-Jun KIM 2025-09-02
12338239 Heterocyclic compound and organic light emitting diode comprising same Gi-Back LEE, Hyun-Ju LA 2025-06-24
12258353 Heterocyclic compound and organic light-emitting element including same Hyun-Ju LA, Hye-Su Ji 2025-03-25
12252485 Heterocyclic compound and organic light emitting device comprising same Hye-Su Ji, Hyun-Ju LA, Dong-Jun KIM 2025-03-18
12171143 Compound, organic optoelectronic diode, and display device Yun-Ji Lee, Min-Ji PARK 2024-12-17
12101998 Heterocyclic compound and organic light emitting diode comprising same Min-Ji PARK, Yun-Ji Lee 2024-09-24
12089493 Heterocyclic compound and organic light emitting device comprising same Nam-Jin LEE, Young Jin Lee 2024-09-10
12077532 Heterocyclic compound and organic light emitting diode comprising same Ji-Young Kim, Han-Kook Oh 2024-09-03
12049472 Heterocyclic compound and organic light emitting device comprising same Nam-Jin LEE, Young Jin Lee 2024-07-30
11910712 Compound, organic optoelectronic diode, and display device Hye-Su Ji, Seong-Jong PARK 2024-02-20
11891361 Heterocyclic compound and organic light emitting device comprising same Hyun-Ju LA, Seong-Jong PARK, Jin-Seok Choi, Dae-Hyuk CHOI, Joo-Dong Lee 2024-02-06
11812623 Hetero-cyclic compound and organic light emitting device using the same Ji Un Kim, Yu-Jun Jung, Nam-Jin LEE, Jun-Tae MO 2023-11-07
11678576 Heterocyclic compound and organic light emitting element comprising same Yun-Ji Lee, Han-Kook Oh, Hye-Su Ji, Jin-Seok Choi, Dae-Hyuk CHOI 2023-06-13
11665961 Heterocyclic compound and organic light emitting device using same Hyun-Ju LA, Yu-Jin HEO, Jin-Seok Choi, Dae-Hyuk CHOI, Joo-Dong Lee 2023-05-30
11563185 Heterocyclic compound and organic light-emitting device comprising same Nam-Jin LEE, Min-Ji PARK, Jin-Seok Choi, Dae-Hyuk CHOI, Joo-Dong Lee 2023-01-24
11552255 Heterocyclic compound and organic light-emitting element using same Hyun-Ju LA, Yu-Jin HEO, Jin-Seok Choi, Dae-Hyuk CHOI, Joo-Dong Lee 2023-01-10
11472817 Heterocyclic compound and organic light-emitting device comprising same Hyun-Ju LA, Yu-Jin HEO 2022-10-18
11476425 Heterocyclic compound and organic light emitting element comprising same Han-Kook Oh, Yun-Ji Lee, Hye-Su Ji, Jin-Seok Choi, Dae-Hyuk CHOI 2022-10-18
11434228 Heterocyclic compound and organic light emitting device comprising same Gi-Back LEE, Seong-Jong PARK, Ji-Young Kim, Jin-Seok Choi, Dae-Hyuk CHOI +1 more 2022-09-06
11427562 Heterocyclic compound, and organic light-emitting device using same Han-Kook Oh, Jun-Tae MO, Yong-Geun JUNG, Jin-Seok Choi, Dae-Hyuk CHOI +1 more 2022-08-30
11362282 Heterocyclic compound and organic light emitting element comprising same Hye-Su Ji, Han-Kook Oh, Yun-Ji Lee, Jin-Seok Choi, Dae-Hyuk CHOI 2022-06-14