Materials for organic electroluminescent devices
US-12433160-B2 · Sep 30, 2025 · US
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Nitro or nitroso dyes
Nitro or nitroso dyes · 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 | C09B51/00 |
| Official title | Nitro or nitroso dyes |
| Display label | Nitro or nitroso dyes |
| 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 |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Small tunable fluorophores for the detection and imaging of biomolecules
US-12415926-B2 · Sep 16, 2025 · US
Photosensitive surface treating agent, laminate, pattern formation substrate, transistor, pattern forming method and method of producing transistor
US-2025180990-A1 · Jun 5, 2025 · US
Materials for organic electroluminescent devices
US-2024090327-A1 · Mar 14, 2024 · US
Stilbene-based compound or salt thereof, and polarizing film, polarizing plate, and display device
US-11802208-B2 · Oct 31, 2023 · US
Fluorescent probes for monoacylglycerol lipase (magl)
US-2022220373-A1 · Jul 14, 2022 · US
Small tunable fluorophores for the detection and imaging of biomolecules
US-2022154003-A1 · May 19, 2022 · US
Stilbene-based compound or salt thereof, and polarizing film, polarizing plate, and display device
US-2020157353-A1 · May 21, 2020 · US
Novel compound, fluorescence derivatization reagent including said novel compound, method for optically resolving optical isomer of amino acid in which said novel compound is used, and fluorescence derivatized amino acid
US-2020002322-A1 · Jan 2, 2020 · US
Optical article comprising a dye resistant to photo-degradation
US-2019375949-A1 · Dec 12, 2019 · US
Non-aqueous inkjet orange ink composition and ink set using the same
US-10385225-B2 · Aug 20, 2019 · US
Non-aqueous inkjet orange ink composition and ink set using the same
US-2019161632-A1 · May 30, 2019 · US
L-glucose derivatives having fluorescent chromophore
US-9958450-B2 · May 1, 2018 · US
Nonlinear optical dye, photorefractive material composition, photorefractive substrate and hologram recording medium
US-9902858-B2 · Feb 27, 2018 · US
C.I. pigment yellow 74 (insoluble AZO pigment), and coloring composition using same
US-9657176-B2 · May 23, 2017 · US
2,5-disubstituted-1,4-diaminobenzenes
US-9522870-B2 · Dec 20, 2016 · US
Nonlinear optical dye, photorefractive material composition, photorefractive substrate and hologram recording medium
US-2016230010-A1 · Aug 11, 2016 · US
L-glucose derivatives having fluorescent chromophore
US-2015212094-A1 · Jul 30, 2015 · US
Method for evaluating specific incorporation of D-glucose into cells
US-8986656-B2 · Mar 24, 2015 · US