Compounds for electronic devices
US-2025081842-A1 · Mar 6, 2025 · US
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containing condensed ring systems
containing condensed ring systems · 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 | C07C211/19 |
| Official title | containing condensed ring systems |
| Display label | containing condensed ring systems |
| Total patents | 21 |
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 | 5 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 3 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Facile direct amination and alkylamination of carbon nanotubes
US-2024417367-A1 · Dec 19, 2024 · US
Novel compound for capping layer and organic light emitting device including same
US-2024279158-A1 · Aug 22, 2024 · US
Azulene ring-containing compound, its use, and an organic photoelectric device including the same
US-11667618-B2 · Jun 6, 2023 · US
Synthesis of bicyclo[2.2.2]octane derivatives
US-11518726-B2 · Dec 6, 2022 · US
Azulene ring-containing compound, its use, and an organic photoelectric device including the same
US-2020377467-A1 · Dec 3, 2020 · US
Synthesis of bicyclo[2.2.2]octane derivatives
US-2020270191-A1 · Aug 27, 2020 · US
Propellane derivates and synthesis
US-10654812-B2 · May 19, 2020 · US
Purification method of aldehyde compound
US-10399929-B2 · Sep 3, 2019 · US
Purification method of aldehyde compound
US-10399930-B2 · Sep 3, 2019 · US
Purification method of aldehyde compound
US-2018093944-A1 · Apr 5, 2018 · US
Purification method of aldehyde compound
US-2018093945-A1 · Apr 5, 2018 · US
Purification method of aldehyde compound
US-9809533-B2 · Nov 7, 2017 · US
Preparation method of aldehyde compound with limited amount of acrylonitrile
US-9487475-B2 · Nov 8, 2016 · US
Preparation method of aldehyde compound using a metal compound and a phosphorus compound
US-9475760-B2 · Oct 25, 2016 · US
Inhibitors of the influenza A virus M2 proton channel
US-9403777-B2 · Aug 2, 2016 · US
Derivatives of sulindac, use thereof and preparation thereof
US-9365528-B2 · Jun 14, 2016 · US
Process for producing aldehyde compounds
US-9227925-B2 · Jan 5, 2016 · US
Preparation method of aldehyde compound
US-2015299109-A1 · Oct 22, 2015 · US
Preparation method of aldehyde compound
US-2015299108-A1 · Oct 22, 2015 · US