Organic compound, organic electroluminescent device and electronic apparatus
US-11492314-B2 · Nov 8, 2022 · US
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Spiro compounds
Spiro compounds · 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 | C07C2603/93 |
| Official title | Spiro compounds |
| Display label | Spiro compounds |
| Total patents | 10 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Organic compound, organic electroluminescent device and electronic apparatus
US-2022220049-A1 · Jul 14, 2022 · US
Amine-based compound and organic light emitting device comprising same
US-11069858-B2 · Jul 20, 2021 · US
Compound for organic electronic element, organic electronic element using the same, and electronic device thereof
US-10840455-B1 · Nov 17, 2020 · US
Amine-based compound and organic light emitting device comprising same
US-2019198763-A1 · Jun 27, 2019 · US
Materials for organic electroluminescent devices
US-2018370938-A1 · Dec 27, 2018 · US
Condensed cyclic compound and organic light-emitting device including the same
US-2017321118-A1 · Nov 9, 2017 · US
Polyimide and alicyclic tetracarboxylic dianhydride used for producing the same
US-9399703-B2 · Jul 26, 2016 · US
Polyimide and alicyclic tetracarboxylic dianhydride used for producing the same
US-2015218317-A1 · Aug 6, 2015 · US
[N]cycloparaphenylenes (CCP), [N]macrocycle intermediates and methods of making same
US-9090473-B2 · Jul 28, 2015 · US