Compound, tautomer of compound or salt of compound or tautomer, method for producing same, coloring composition, dyeing method, and dyed article
US-12240842-B2 · Mar 4, 2025 · US
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Trisazo dyes of the type [IMAGE cpc-sch-C09B-1013.gif]
Trisazo dyes of the type [IMAGE cpc-sch-C09B-1013.gif] · 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 | C09B33/24 |
| Official title | Trisazo dyes of the type [IMAGE cpc-sch-C09B-1013.gif] |
| Display label | Trisazo dyes of the type [IMAGE cpc-sch-C09B-1013.gif] |
| Total patents | 9 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compound, tautomer of compound or salt of compound or tautomer, method for producing same, coloring composition, dyeing method, and dyed article
US-2023242523-A1 · Aug 3, 2023 · US
Electrowetting element
US-10444489-B2 · Oct 15, 2019 · US
Coloring compound, yellow toner, ink, thermal transfer recording sheet, and color filter resist composition
US-9976034-B1 · May 22, 2018 · US
Coloring compound, yellow toner, ink, thermal transfer recording sheet, and color filter resist composition
US-2018118944-A1 · May 3, 2018 · US
Electrowetting element
US-2017003497-A1 · Jan 5, 2017 · US
Compound having azo skeleton and pigment dispersant, pigment composition, pigment dispersion, and toner containing the compound
US-9470995-B2 · Oct 18, 2016 · US
Electrowetting device
US-9447282-B2 · Sep 20, 2016 · US
Novel compound having azo skeleton and pigment dispersant, pigment composition, pigment dispersion, and toner containing the compound
US-2015024321-A1 · Jan 22, 2015 · US