Inventor · disambiguated record
Hee-Choon Ahn
Also filed as: AHN HEE-CHOON
16 granted patents·30 pending applications·9 citations·filing 2011–2025
87Inventor score
Files withROHM & HAAS ELECT MATERIALS KOREA LTD34ROHM & HAAS ELECT MAT7AHN HEE-CHOON2DUPONT SPECIALTY MATERIALS KOREA LTD2KIM NAM-KYUN1
Top patents by PatentIndex Score
46 records- 0188US11917907B2Organic electroluminescent deviceROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2021·Granted Feb 27, 2024·1 cites·11 claims
- 0284US12457899B2Multi-component host material and an organic electroluminescence device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2023·Granted Oct 28, 2025·0 cites·4 claims
- 0384US12402531B2Multi-component host material and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2024·Granted Aug 26, 2025·0 cites·3 claims
- 0483US2025346806A1Organic electroluminescent compounds and organic electroluminescent device comprising the sameDUPONT SPECIALTY MATERIALS KOREA LTD·Filed 2025·Application pending·0 cites
- 0582US12391875B2Organic electroluminescent compounds and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2023·Granted Aug 19, 2025·0 cites·1 claims
- 0682US10886474B2Organic electroluminescent compound, and organic electroluminescent material and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Granted Jan 5, 2021·3 cites·4 claims
- 0779US2024147845A1Organic electroluminescent deviceROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2023·Application pending·0 cites
- 0878US11527728B2Organic electroluminescent compounds and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2019·Granted Dec 13, 2022·1 cites·6 claims
- 0977US10319918B2Organic electroluminescent compound and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2017·Granted Jun 11, 2019·1 cites·7 claims
- 1076US11807788B2Organic electroluminescent compounds and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2021·Granted Nov 7, 2023·0 cites·3 claims
- 1175US2022216429A1Multi-component host material and an organic electroluminescence device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2022·Application pending·0 cites
- 1275US2022216430A1Multi-component host material and an organic electroluminescence device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2022·Application pending·0 cites
- 1372US9768394B2Organic electroluminescent compound and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Granted Sep 19, 2017·1 cites·7 claims
- 1470US2022077405A1Multi-component host material and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2021·Application pending·0 cites
- 1569US10069086B2Plurality of host materials and an organic electroluminescence device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Granted Sep 4, 2018·1 cites·7 claims
- 1668US9287512B2Organic electroluminescent compounds, layers and organic electroluminescent device using the sameROHM & HAAS ELECT MAT·Filed 2015·Granted Mar 15, 2016·1 cites·20 claims
- 1767US2025351723A1Multi-component host material and organic electroluminescent device comprising the sameDUPONT SPECIALTY MATERIALS KOREA LTD·Filed 2025·Application pending·0 cites
- 1866US2022102644A1Organic electroluminescent deviceROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2021·Application pending·0 cites
- 1964US2021210697A1Multi-component host material and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2021·Application pending·0 cites
- 2058US11930704B2Organic electroluminescent device comprising an electron buffer layer and an electron transport layerROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2022·Granted Mar 12, 2024·0 cites·7 claims
- 2158US2018208837A1Organic electroluminescent compounds and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2016·Application pending·0 cites
- 2256US2017117488A1Multi-component host material and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Application pending·0 cites
- 2356US2017125699A1Multi-component host material and an organic electroluminescence device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Application pending·0 cites
- 2455US2023020540A1Multi-component host material and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2022·Application pending·0 cites
- 2553US10529933B2Organic electroluminescent compounds and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2016·Granted Jan 7, 2020·0 cites·9 claims
- 2652US2017213968A1Organic electroluminescent deviceROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Application pending·0 cites
- 2752US2017077423A1Multi-component host material and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Application pending·0 cites
- 2852US2017207396A1Organic electroluminescent deviceROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Application pending·0 cites
- 2950US10633583B2Organic electroluminescent compounds and an organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Granted Apr 28, 2020·0 cites·6 claims
- 3050US2014107338A1Novel organic electroluminescent compounds and organic electroluminescent device using the sameAHN HEE-CHOON·Filed 2012·Application pending·0 cites
- 3144US2015155498A1Novel organic electroluminescence compounds and organic electroluminescence device containing the sameROHM & HAAS ELECT MAT·Filed 2013·Application pending·0 cites
- 3244US2015133662A1Novel organic electroluminescence compounds and organic electroluminescence device containing the sameROHM & HAAS ELECT MAT·Filed 2013·Application pending·0 cites
- 3342US2015171346A1Novel Organic Electroluminescent Compounds and Organic Electroluminescent Device Using The SameROHM & HAAS ELECT MAT·Filed 2015·Application pending·0 cites
- 3440US2014323723A1Novel organic electroluminescent compounds and an organic electroluminescent device usinc the sameROHM & HAAS ELECT MAT·Filed 2012·Application pending·0 cites
- 3540US2019207125A1Organic electroluminescent device comprising an electron buffer layer and an electron transport layerROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2017·Application pending·0 cites
- 3638US2017047527A1Multi-component host material and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Application pending·0 cites
- 3738US2017062730A1Multi-component host material and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Application pending·0 cites
- 3838US2017170408A1Organic electroluminescent deviceROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Application pending·0 cites
- 3936US11394000B2Electron buffering materials, electron transport materials and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2016·Granted Jul 19, 2022·0 cites·11 claims
- 4034US2015105563A1Novel organic electroluminescent compounds and organic electroluminescent device comprising the sameROHM & HAAS ELECT MAT·Filed 2013·Application pending·0 cites
- 4134US2014061609A1Novel compounds for organic electronic material and organic electroluminescent device using the sameKIM NAM KYUN·Filed 2011·Application pending·0 cites
- 4234US2017098784A1Multi-component host material and an organic electroluminescence device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Application pending·0 cites
- 4334US2017256722A1A hole transport material and an organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2015·Application pending·0 cites
- 4433US11800796B2Luminescent material for delayed fluorescence and organic electroluminescent device comprising the sameROHM & HAAS ELECT MATERIALS KOREA LTD·Filed 2016·Granted Oct 24, 2023·0 cites·6 claims
- 4533US2014364625A1Novel organic electroluminescent compounds and organic electroluminescent device using the sameROHM & HAAS ELECT MAT·Filed 2013·Application pending·0 cites
- 4631US2015025239A1Novel organic electroluminescent compounds and organic electroluminescent device using the sameAHN HEE-CHOON·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →