Masked fluorogenic compounds and methods of using the same
US-2023121031-A1 · Apr 20, 2023 · US
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Sulfur dyes
Sulfur 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 | C09B49/00 |
| Official title | Sulfur dyes |
| Display label | Sulfur dyes |
| Total patents | 18 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Thermal marking of 3D printed objects
US-11565462-B2 · Jan 31, 2023 · US
Thermal marking of 3d printed objects
US-2022072762-A1 · Mar 10, 2022 · US
Fluorogenic pH-sensitive dyes, film and kit comprising the same
US-11041812-B2 · Jun 22, 2021 · US
Carboxylate-bridged binuclear iron-sulfur clusters fluorescent probe, preparation method and application thereof
US-10352917-B2 · Jul 16, 2019 · US
FLUOROGENIC pH-SENSITIVE DYES, FILM AND KIT COMPRISING THE SAME
US-2018231471-A1 · Aug 16, 2018 · US
Thiol group-containing colored compound, metal nanowire, dispersion liquid, transparent conductive film, information input device, and electronic apparatus
US-9988535-B2 · Jun 5, 2018 · US
Color filter and display device comprising the same
US-9989683-B2 · Jun 5, 2018 · US
Carboxylate-bridged binuclear iron-sulfur clusters flourescent probe, preparation method and application thereof
US-2017131256-A1 · May 11, 2017 · US
Color filter and display device comprising the same
US-2017045654-A1 · Feb 16, 2017 · US
Photoelectric conversion element
US-2016217936-A1 · Jul 28, 2016 · US
Thiol group-containing colored compound, metal nanowire, dispersion liquid, transparent conductive film, information input device, and electronic apparatus
US-2016208104-A1 · Jul 21, 2016 · US
Sustainable range of dyestuffs for textile and paper dyeing
US-9340674-B2 · May 17, 2016 · US
Sustainable range of sulfur dyes for textile and paper dyeing
US-9340675-B2 · May 17, 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
Carboxylic acid type water-soluble sulfur dye
US-9193696-B2 · Nov 24, 2015 · US
Disulfide dyes
US-8992633-B2 · Mar 31, 2015 · US
Carboxylic acid type water-soluble sulfur dye
US-2015065707-A1 · Mar 5, 2015 · US