Azo compound or salt thereof, and dye-based polarizing film and dye-based polarizing plate containing same
US-12098287-B2 · Sep 24, 2024 · US
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from a coupling component "D" containing a directive amine group
from a coupling component "D" containing a directive amine group · 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 | C09B31/18 |
| Official title | from a coupling component "D" containing a directive amine group |
| Display label | from a coupling component "D" containing a directive amine group |
| Total patents | 16 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2022 | 2 |
| 2024 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Light absorption anisotropic layer, laminate, and infrared light sensor system
US-2024142682-A1 · May 2, 2024 · US
Trisazo Compounds for Ink-jet Printing
US-2022235000-A1 · Jul 28, 2022 · US
Azo Compound Or Salt Thereof, And Dye-Based Polarizing Film And Dye-Based Polarizing Plate Containing Same
US-2022010139-A1 · Jan 13, 2022 · US
Composition for forming dye type polarizer and dye type polarizer
US-10527758-B2 · Jan 7, 2020 · US
Carrier fluid compounds and dye compounds for electrowetting apparatus
US-10338372-B2 · Jul 2, 2019 · US
Azo Compound Or Salt Thereof, And Polarizing Film Containing Same
US-2019048194-A1 · Feb 14, 2019 · US
Polarizing film, display device and production process thereof
US-10047294-B2 · Aug 14, 2018 · US
Polarizing film, display device and production process thereof
US-2016280999-A1 · Sep 29, 2016 · US
COMPOSITION FOR FORMING DYE TYPE POLARIZER AND DYE TYPE POLARIZER (As Amended)
US-2016274274-A1 · Sep 22, 2016 · US
Polarizing film, display device and production process thereof
US-9382481-B2 · Jul 5, 2016 · US
Carrier fluid compounds and dye compounds for electrowetting apparatus
US-2015370062-A1 · Dec 24, 2015 · US
Polarizing film and display device including the polarizing film
US-9194980-B2 · Nov 24, 2015 · US
Black dichroic dye
US-9057020-B2 · Jun 16, 2015 · US
Azo dyes
US-9023118-B2 · May 5, 2015 · US
Dichroic dye composition, light absorption anisotropic film, and polarizing element
US-8927070-B2 · Jan 6, 2015 · US