Organic electroluminescent compounds and organic electroluminescent device comprising the same
US-2025346806-A1 · Nov 13, 2025 · US
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Ahn Hee-Choon patents
Ahn Hee-Choon is listed as an inventor on 56 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Ahn Hee-Choon |
| Total patents | 56 |
| First publication | Apr 16, 2015 |
| Latest publication | Nov 13, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Multi-component host material and organic electroluminescent device comprising the same
US-2025351723-A1 · Nov 13, 2025 · US
Multi-component host material and an organic electroluminescence device comprising the same
US-12457899-B2 · Oct 28, 2025 · US
Multi-component host material and organic electroluminescent device comprising the same
US-12402531-B2 · Aug 26, 2025 · US
Organic electroluminescent compounds and organic electroluminescent device comprising the same
US-12391875-B2 · Aug 19, 2025 · US
Multi-component host material and organic electroluminescent device comprising the same
US-2024206333-A1 · Jun 20, 2024 · US
Organic electroluminescent device
US-2024147845-A1 · May 2, 2024 · US
Multi-component host material and an organic electroluminescence device comprising the same
US-2024090328-A1 · Mar 14, 2024 · US
Organic electroluminescent device comprising an electron buffer layer and an electron transport layer
US-11930704-B2 · Mar 12, 2024 · US
Organic electroluminescent compounds and organic electroluminescent device comprising the same
US-2024067874-A1 · Feb 29, 2024 · US
Recent patents
Latest publications not already listed above.
Organic electroluminescent device
US-11917907-B2 · Feb 27, 2024 · US
Organic electroluminescent compounds and organic electroluminescent device comprising the same
US-11807788-B2 · Nov 7, 2023 · US
Luminescent material for delayed fluorescence and organic electroluminescent device comprising the same
US-11800796-B2 · Oct 24, 2023 · US
Organic electroluminescent device comprising an electron buffer layer and an electron transport layer
US-2023180604-A1 · Jun 8, 2023 · US
Multi-component host material and organic electroluminescent device comprising the same
US-2023020540-A1 · Jan 19, 2023 · US
Organic electroluminescent compounds and organic electroluminescent device comprising the same
US-11527728-B2 · Dec 13, 2022 · US
Electron buffering materials, electron transport materials and organic electroluminescent device comprising the same
US-11394000-B2 · Jul 19, 2022 · US
Multi-component host material and an organic electroluminescence device comprising the same
US-2022216429-A1 · Jul 7, 2022 · US
Multi-component host material and an organic electroluminescence device comprising the same
US-2022216430-A1 · Jul 7, 2022 · US
Organic electroluminescent compounds and organic electroluminescent device comprising the same
US-2022186114-A1 · Jun 16, 2022 · US
Organic electroluminescent device
US-2022102633-A1 · Mar 31, 2022 · US
Organic electroluminescent device
US-2022102644-A1 · Mar 31, 2022 · US
Multi-component host material and organic electroluminescent device comprising the same
US-2022077405-A1 · Mar 10, 2022 · US
Multi-component host material and organic electroluminescent device comprising the same
US-2021210697-A1 · Jul 8, 2021 · US
Organic electroluminescent compound, and organic electroluminescent material and organic electroluminescent device comprising the same
US-10886474-B2 · Jan 5, 2021 · US
Organic electroluminescent compounds and an organic electroluminescent device comprising the same
US-10633583-B2 · Apr 28, 2020 · US
Organic electroluminescent compounds and organic electroluminescent device comprising the same
US-2020106027-A1 · Apr 2, 2020 · US
Organic electroluminescent compounds and organic electroluminescent device comprising the same
US-10529933-B2 · Jan 7, 2020 · US
Organic electroluminescent device comprising an electron buffer layer and an electron transport layer
US-2019207125-A1 · Jul 4, 2019 · US
Organic electroluminescent compound and organic electroluminescent device comprising the same
US-10319918-B2 · Jun 11, 2019 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Rohm & Haas Elect Materials Korea Ltd | 49 |
| Dupont Specialty Materials Korea Ltd | 5 |
| Rohm & Haas Elect Mat | 5 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| H10K85/6572 | 56 |
| H10K50/11 | 55 |
| C09K11/06 | 51 |
| H10K85/6576 | 50 |
| H10K85/654 | 45 |