Novel compound, organic electroluminescence device using the same, and electronic apparatus
US-2026071120-A1 · Mar 12, 2026 · US
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containing four rings
containing four rings · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C15/62 |
| Official title | containing four rings |
| Display label | containing four rings |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compound, organic electroluminescence device using the same, and electronic apparatus
US-12516240-B2 · Jan 6, 2026 · US
Anthracene compound and organic light-emitting device comprising same
US-2025066275-A1 · Feb 27, 2025 · US
Organic molecules for optoelectronic devices
US-12180131-B2 · Dec 31, 2024 · US
Functionalized polycyclic aromatic hydrocarbon compound and light-emitting device including the same
US-12122732-B2 · Oct 22, 2024 · US
Hardmask composition, hardmask layer and method of forming patterns
US-2024255842-A1 · Aug 1, 2024 · US
Pyrene-triazine derivative and applications thereof in organic electronic component
US-11672174-B2 · Jun 6, 2023 · US
Fused ring compound, high polymer, mixture, composition and organic electronic component
US-11518723-B2 · Dec 6, 2022 · US
Organic electroluminescent element and electronic device using same
US-2022289704-A1 · Sep 15, 2022 · US
Novel compound, organic electroluminescence device using the same, and electronic apparatus
US-2022289726-A1 · Sep 15, 2022 · US
Light-emitting device including fused cyclic compound, electronic apparatus including the light-emitting device, and the fused cyclic compound
US-2022278295-A1 · Sep 1, 2022 · US
Organic functional compounds, mixtures, formulations, organic functional thin films and preparation methods therefor and organic electronic devices
US-11404644-B2 · Aug 2, 2022 · US
Functionalized polycyclic aromatic hydrocarbon compound and light-emitting device including the same
US-2021300845-A1 · Sep 30, 2021 · US
Photoelectric conversion element
US-2021114988-A1 · Apr 22, 2021 · US
Fused ring compound, high polymer, mixture, composition and organic electronic component
US-2021114954-A1 · Apr 22, 2021 · US
Organic molecules for optoelectronic devices
US-2020290941-A1 · Sep 17, 2020 · US
Organic functional compounds, mixtures, formulations, organic functional thin films and preparation methods therefor and organic electronic devices
US-2019363258-A1 · Nov 28, 2019 · US
Pyrene-triazine derivative and applications thereof in organic electronic component
US-2019334093-A1 · Oct 31, 2019 · US
Organic compound and organic light emitting device using the same
US-9608205-B2 · Mar 28, 2017 · US
Materials for organic electroluminescent devices
US-9499459-B2 · Nov 22, 2016 · US