Monoazo dichroic dye compound, polarizing plate composition comprising same, polarizing plate formed therefrom, and optical device comprising same
US-12163084-B2 · Dec 10, 2024 · US
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having -N< (in a ring)
having -N< (in a ring) · 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 | C09B29/083 |
| Official title | {having -N< (in a ring)} |
| Display label | having -N< (in a ring) |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2018 | 3 |
| 2021 | 1 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Monoazo dichroic dye compound, polarizing plate composition comprising same, polarizing plate formed therefrom, and optical device comprising same
US-2023340331-A1 · Oct 26, 2023 · US
Pigment composite particle
US-2021284846-A1 · Sep 16, 2021 · US
Polarizing film, display device and production process thereof
US-10047294-B2 · Aug 14, 2018 · US
Method of coloring hair with washfast blue imidazolium direct dye compounds
US-10034823-B2 · Jul 31, 2018 · US
Method of Coloring Hair with Washfast Blue Imidazolium Direct Dye Compounds
US-2018078478-A1 · Mar 22, 2018 · US
Polarizing film, display device and production process thereof
US-2016280999-A1 · Sep 29, 2016 · US
Polarizing film, display device and production process thereof
US-9382481-B2 · Jul 5, 2016 · US