Monoazo dichroic dye compound, polarizing plate composition comprising same, polarizing plate formed therefrom, and optical device comprising same
US-12398326-B2 · Aug 26, 2025 · US
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Amino naphthalenes
Amino naphthalenes · 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 | C09B29/095 |
| Official title | Amino naphthalenes |
| Display label | Amino naphthalenes |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2018 | 1 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 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-12163084-B2 · Dec 10, 2024 · US
Monoazo dichroic dye compound, polarizing plate composition comprising same, polarizing plate formed therefrom, and optical device comprising same
US-2023357638-A1 · Nov 9, 2023 · US
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
Water-based ink for ink-jet recording
US-11434386-B2 · Sep 6, 2022 · US
Compound, coloring composition, ink, toner, coloring resin composition, and composition for dyeing fiber
US-2021214560-A1 · Jul 15, 2021 · US
Water-Based Ink For Ink-Jet Recording
US-2019300735-A1 · Oct 3, 2019 · US
Disperse azo dyes, a process for the preparation thereof and the use thereof
US-10023742-B2 · Jul 17, 2018 · US
Disperse Azo Dyes, A Process for the Preparation Thereof and the Use Thereof
US-2016251517-A1 · Sep 1, 2016 · US
Disperse azo dyes, a process for the preparation thereof and the use thereof
US-9376570-B2 · Jun 28, 2016 · US
Composition for dyeing keratin fibres comprising a direct dye bearing a disulphide/thiol function, a nonionic surfactant, an amphoteric surfactant, an ethoxylated fatty alcohol, an alkaline agent and a reducing agent
US-9265705-B2 · Feb 23, 2016 · US
Disperse Azo Dyes, A Process for the Preparation Thereof and the Use Thereof
US-2015197637-A1 · Jul 16, 2015 · US
Compound having xanthene skeleton, coloring composition, ink for ink jet recording and ink jet recording method
US-9023138-B2 · May 5, 2015 · US