Functionalized polycyclic aromatic hydrocarbon compound and light-emitting device including the same
US-12122732-B2 · Oct 22, 2024 · US
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polycyclic condensed
polycyclic condensed · 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 | C07C15/56 |
| Official title | polycyclic condensed |
| Display label | polycyclic condensed |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 2 |
| 2019 | 3 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hardmask composition, hardmask layer and method of forming patterns
US-2024255842-A1 · Aug 1, 2024 · US
Circularly polarized oled emitting layer composition
US-2023397490-A1 · Dec 7, 2023 · 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
Compound, composition for forming organic film, substrate for manufacturing semiconductor apparatus, method for forming organic film, and patterning process
US-11307497-B2 · Apr 19, 2022 · US
Use of a substituted or unsubstituted polycyclic aromatic hydrocarbon compound for high-resolution microscopy
US-2021388260-A1 · Dec 16, 2021 · US
Functionalized polycyclic aromatic hydrocarbon compound and light-emitting device including the same
US-2021300845-A1 · Sep 30, 2021 · 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
Method and device for reducing heavy polycyclic aromatic compounds in hydrocracking units
US-10465127-B2 · Nov 5, 2019 · US
Compound, composition for forming organic film, substrate for manufacturing semiconductor apparatus, method for forming organic film, and patterning process
US-2019300498-A1 · Oct 3, 2019 · US
Method and device for reducing heavy polycyclic aromatic compounds in hydrocracking units
US-2017342331-A1 · Nov 30, 2017 · US
Solvent-based methods for production of graphene nanoribbons
US-2017081441-A1 · Mar 23, 2017 · US
Solvent-based methods for production of graphene nanoribbons
US-9493355-B2 · Nov 15, 2016 · US
Method for producing a pi-electron conjugated compound
US-9224959-B2 · Dec 29, 2015 · US
Organic electronic device containing an organic semiconductor material film which contains a leaving substituent-containing compound
US-9123896-B2 · Sep 1, 2015 · US