Small tunable fluorophores for the detection and imaging of biomolecules
US-12415926-B2 · Sep 16, 2025 · US
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linked by a chain containing hetero atoms as chain links
linked by a chain containing hetero atoms as chain links · 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 | C07D421/12 |
| Official title | linked by a chain containing hetero atoms as chain links |
| Display label | linked by a chain containing hetero atoms as chain links |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Organic electroluminescent compound, a plurality of host materials and organic electroluminescent device comprising the same
US-2025133961-A1 · Apr 24, 2025 · US
Selenium Maleimide Compounds And Uses Thereof
US-2024262818-A1 · Aug 8, 2024 · US
Organic electroluminescent device
US-2024206311-A1 · Jun 20, 2024 · US
Plurality of host materials and organic electroluminescent device comprising the same
US-2024057475-A1 · Feb 15, 2024 · US
Organic electroluminescence device and amine compound for organic electroluminescence device
US-11737356-B2 · Aug 22, 2023 · US
Organic electroluminescent compound, a plurality of host materials, and organic electroluminescent device comprising the same
US-2023130802-A1 · Apr 27, 2023 · US
Organic electroluminescent compound and organic electroluminescent device comprising the same
US-2023100003-A1 · Mar 30, 2023 · US
Photosensitizer and derivatives and application thereof
US-11504428-B2 · Nov 22, 2022 · US
Small tunable fluorophores for the detection and imaging of biomolecules
US-2022154003-A1 · May 19, 2022 · US
Chemical Compounds
US-2022009918-A1 · Jan 13, 2022 · US
Organic electroluminescence device and amine compound for organic electroluminescence device
US-2021175430-A1 · Jun 10, 2021 · US
Photosensitizer and derivatives and application thereof
US-2021030873-A1 · Feb 4, 2021 · US
Compound and organic photoelectric device, image sensor and electronic device including the same
US-10566544-B2 · Feb 18, 2020 · US
Compound and photoelectric device, image sensor and electronic device including the same
US-10461256-B2 · Oct 29, 2019 · US
Compound and organic photoelectric device, image sensor and electronic device including the same
US-2019207119-A1 · Jul 4, 2019 · US
Compound for organic photoelectric device and organic photoelectric device image sensor, and electronic device including the same
US-10290812-B2 · May 14, 2019 · US
Compound and organic photoelectric device, image sensor and electronic device including the same
US-10276802-B2 · Apr 30, 2019 · US
Compound and photoelectric device, image sensor and electronic device including the same
US-2017352811-A1 · Dec 7, 2017 · US
Compound and organic photoelectric device, image sensor and electronic device including the same
US-2017294589-A1 · Oct 12, 2017 · US