Organic compound and sensor and sensor embedded display panel and electronic device
US-12581853-B2 · Mar 17, 2026 · US
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Spiro-condensed systems
Spiro-condensed 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 | C07D517/20 |
| Official title | Spiro-condensed systems |
| Display label | Spiro-condensed systems |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compound and photoelectric device, image sensor, and electronic device including the same
US-2025257066-A1 · Aug 14, 2025 · US
Compound and photoelectric device, image sensor, and electronic device including the same
US-12349592-B2 · Jul 1, 2025 · US
Condensed cyclic compound, organic light-receiving device including the same, and electronic apparatus and electronic device including the light-receiving device
US-2024155868-A1 · May 9, 2024 · US
Fluorescent sensors
US-2024019450-A1 · Jan 18, 2024 · US
Condensed fluorene derivative comprising heterocyclic ring
US-11683980-B2 · Jun 20, 2023 · US
Organic compound and sensor and sensor embedded display panel and electronic device
US-2023134363-A1 · May 4, 2023 · US
Organic light emitting diode having high efficiency
US-11532792-B2 · Dec 20, 2022 · US
Composition for photoelectric device, and photoelectric device, image sensor, and electronic device including the same
US-2022220127-A1 · Jul 14, 2022 · US
Organic heterocyclic compound and light-emitting diode comprising same
US-11279693-B2 · Mar 22, 2022 · US
Compound and photoelectric device, image sensor, and electronic device including the same
US-2021234103-A1 · Jul 29, 2021 · US
Organic light emitting diode having high efficiency
US-2020127209-A1 · Apr 23, 2020 · US
Polyheteroaromatic compound and organic electroluminescence device using the same
US-10622566-B2 · Apr 14, 2020 · US
Delayed fluorescence compound and organic electroluminescent device using the same
US-10472564-B2 · Nov 12, 2019 · US
Spiro dihydroacridine derivatives and the use thereof as materials for organic electroluminescence devices
US-10305040-B2 · May 28, 2019 · US
Polyheteroaromatic compound and organic electroluminescence device using the same
US-2019123284-A1 · Apr 25, 2019 · US
Delayed fluorescence compound and organic electroluminescent device using the same
US-2019093009-A1 · Mar 28, 2019 · US
Novel organic heterocyclic compound and lihght-emitting diode comprising same
US-2018319776-A1 · Nov 8, 2018 · US
Condensed fluorene derivative comprising heterocyclic ring
US-2017222155-A1 · Aug 3, 2017 · US