Inventor · disambiguated record
Yongbum Cha
Also filed as: CHA YONGBUM
55 granted patents·19 pending applications·22 citations·filing 2012–2024
96Inventor score
Top patents by PatentIndex Score
74 records- 0191US11152576B2Organic light emitting deviceLG CHEMICAL LTD·Filed 2018·Granted Oct 19, 2021·5 cites·16 claims
- 0287US11845768B2Polycyclic compound and organic light-emitting device including sameLG CHEMICAL LTD·Filed 2019·Granted Dec 19, 2023·3 cites·11 claims
- 0387US11631821B2Polycyclic aromatic compounds containing a 1,11-dioxa-,1,11-dithia-, or 1-oxa-11-thia-4,8-diaza-11b-boradicyclopenta[a,j]phenalene core and organic light-emitting device comprising sameLG CHEMICAL LTD·Filed 2019·Granted Apr 18, 2023·3 cites·8 claims
- 0480US10822330B2Heterocyclic compound and organic light emitting diode containing sameLG CHEMICAL LTD·Filed 2017·Granted Nov 3, 2020·2 cites·11 claims
- 0578US10873035B2Heterocyclic compound and organic light emitting diode containing sameLG CHEMICAL LTD·Filed 2017·Granted Dec 22, 2020·2 cites·15 claims
- 0676US11001752B2Double spiro organic compound and organic electronic element comprising sameLG CHEMICAL LTD·Filed 2016·Granted May 11, 2021·1 cites·29 claims
- 0775US11094889B2Heterocyclic compound and organic light emitting element comprising sameLG CHEMICAL LTD·Filed 2017·Granted Aug 17, 2021·1 cites·9 claims
- 0873US10230056B2Heterocyclic compound and organic light emitting element comprising sameLG CHEMICAL LTD·Filed 2016·Granted Mar 12, 2019·1 cites·20 claims
- 0973US9373793B2Compound and organic light-emitting device using sameHONG SUNG KIL·Filed 2012·Granted Jun 21, 2016·2 cites·12 claims
- 1072US11031560B2Compound and organic electronic element comprising sameLG CHEMICAL LTD·Filed 2016·Granted Jun 8, 2021·1 cites·16 claims
- 1169US10981876B2Spiro compound and organic light emitting element comprising sameLG CHEMICAL LTD·Filed 2016·Granted Apr 20, 2021·1 cites·18 claims
- 1268US11208368B2Double-spiro type compound and organic light-emitting device containing sameLG CHEMICAL LTD·Filed 2019·Granted Dec 28, 2021·0 cites·15 claims
- 1366US11849636B2Heterocyclic compound and organic light emitting element comprising sameLG CHEMICAL LTD·Filed 2021·Granted Dec 19, 2023·0 cites·7 claims
- 1465US2024349607A1Compound and organic light-emitting device comprising sameLG CHEMICAL LTD·Filed 2024·Application pending·0 cites
- 1565US2025120304A1Organic light emitting deviceLG CHEMICAL LTD·Filed 2024·Application pending·0 cites
- 1662US2025257043A1Compound and organic light-emitting device comprising sameLG CHEMICAL LTD·Filed 2023·Application pending·0 cites
- 1762US2024423087A1Compound and organic light emitting device comprising sameLG CHEMICAL LTD·Filed 2024·Application pending·0 cites
- 1862US2025169361A1Compound and organic light-emitting device comprising sameLG CHEMICAL LTD·Filed 2023·Application pending·0 cites
- 1961US9728728B2Compound and organic light-emitting device using sameLG CHEMICAL LTD·Filed 2013·Granted Aug 8, 2017·0 cites·14 claims
- 2059US2025185453A1Organic light-emitting deviceLG CHEMICAL LTD·Filed 2023·Application pending·0 cites
- 2159US2025160207A1Compound and organic light-emitting element comprising sameLG CHEMICAL LTD·Filed 2023·Application pending·0 cites
- 2258US12004421B2Compound and organic light emitting device comprising the sameLG CHEMICAL LTD·Filed 2019·Granted Jun 4, 2024·0 cites·15 claims
- 2357US12202838B2Heterocyclic compound and organic light emitting device comprising sameLG CHEMICAL LTD·Filed 2019·Granted Jan 21, 2025·0 cites·8 claims
- 2457US12052913B2Organic electroluminescent deviceLG CHEMICAL LTD·Filed 2019·Granted Jul 30, 2024·0 cites·17 claims
- 2557US11926607B2Compound and organic light emitting device comprising the sameLG CHEMICAL LTD·Filed 2019·Granted Mar 12, 2024·0 cites·7 claims
- 2657US2025234697A1Organic light-emitting deviceLG CHEMICAL LTD·Filed 2023·Application pending·0 cites
- 2757US2025241115A1Compound and organic light-emitting device comprising sameLG CHEMICAL LTD·Filed 2023·Application pending·0 cites
- 2856US12391678B2Compound and organic light emitting device comprising sameLG CHEMICAL LTD·Filed 2021·Granted Aug 19, 2025·0 cites·10 claims
- 2956US2025109124A1Compound and organic light-emitting device comprising sameLG CHEMICAL LTD·Filed 2022·Application pending·0 cites
- 3056US2025160209A1Compound and organic light-emitting device comprising sameLG CHEMICAL LTD·Filed 2022·Application pending·0 cites
- 3155US2018002256A1Double-spiro type compound and organic light-emitting device containing sameLG CHEMICAL LTD·Filed 2016·Application pending·0 cites
- 3253US11778905B2Compound and organic light emitting device comprising sameLG CHEMICAL LTD·Filed 2019·Granted Oct 3, 2023·0 cites·9 claims
- 3353US10577355B2Hetero ring compound and organic luminescent element comprising sameLG CHEMICAL LTD·Filed 2015·Granted Mar 3, 2020·0 cites·5 claims
- 3451US11878962B2Compound and organic light emitting device comprising sameLG CHEMICAL LTD·Filed 2019·Granted Jan 23, 2024·0 cites·17 claims
- 3550US2022246848A1Organic light emitting deviceLG CHEMICAL LTD·Filed 2021·Application pending·0 cites
- 3649US11778909B2Compound and organic light emitting device comprising the sameLG CHEMICAL LTD·Filed 2019·Granted Oct 3, 2023·0 cites·9 claims
- 3749US2022085300A1Organic light emitting deviceLG CHEMICAL LTD·Filed 2020·Application pending·0 cites
- 3849US2023086039A1Organic light emitting deviceLG CHEMICAL LTD·Filed 2021·Application pending·0 cites
- 3948US11462695B2Organic light emitting elementLG CHEMICAL LTD·Filed 2018·Granted Oct 4, 2022·0 cites·18 claims
- 4047US11950440B2Organic light emitting deviceLG CHEMICAL LTD·Filed 2020·Granted Apr 2, 2024·0 cites·9 claims
- 4147US11718606B2Polycyclic compound and organic light emitting element comprising sameLG CHEMICAL LTD·Filed 2017·Granted Aug 8, 2023·0 cites·11 claims
- 4247US11569453B2Polycyclic compound and organic light emitting element comprising sameLG CHEMICAL LTD·Filed 2019·Granted Jan 31, 2023·0 cites·8 claims
- 4347US10730812B2Double spiro compound and organic light-emitting element comprising sameLG CHEMICAL LTD·Filed 2016·Granted Aug 4, 2020·0 cites·16 claims
- 4446US10991886B2Amine-based compound and organic light emitting device comprising sameLG CHEMICAL LTD·Filed 2016·Granted Apr 27, 2021·0 cites·14 claims
- 4546US10651411B2Compound and organic light emitting device containing sameLG CHEMICAL LTD·Filed 2016·Granted May 12, 2020·0 cites·17 claims
- 4645US12069944B2Organic light emitting diodeLG CHEMICAL LTD·Filed 2020·Granted Aug 20, 2024·0 cites·6 claims
- 4745US9972785B2Spiro-type compound and organic light emitting element comprising sameLG CHEMICAL LTD·Filed 2016·Granted May 15, 2018·0 cites·17 claims
- 4844US11306060B2Compound and organic electronic element comprising sameLG CHEMICAL LTD·Filed 2017·Granted Apr 19, 2022·0 cites·12 claims
- 4944US10968230B2Spiro-structured compound and organic electronic device comprising sameLG CHEMICAL LTD·Filed 2017·Granted Apr 6, 2021·0 cites·19 claims
- 5044US10862045B2Amine-based compound and organic light-emitting element comprising sameLG CHEMICAL LTD·Filed 2016·Granted Dec 8, 2020·0 cites·16 claims
Showing the top 50 of 74 patent records by PatentIndex Score.
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