Anthraquinone compounds and use thereof
US-2018327603-A1 · Nov 15, 2018 · US
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Dyes with no other substituents than the amino groups
Dyes with no other substituents than the amino groups · 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 | C09B1/285 |
| Official title | {Dyes with no other substituents than the amino groups} |
| Display label | Dyes with no other substituents than the amino groups |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be growing based on the most recent years.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 2 |
| 2018 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrophoretic fluid
US-10048562-B2 · Aug 14, 2018 · US
Method of coloring hair with washfast blue imidazolium direct dye compounds
US-10034823-B2 · Jul 31, 2018 · US
Electrophoretic fluid
US-9977309-B2 · May 22, 2018 · US
Method of Coloring Hair with Washfast Blue Imidazolium Direct Dye Compounds
US-2018078478-A1 · Mar 22, 2018 · US
Thermal transfer recording sheet
US-9481192-B2 · Nov 1, 2016 · US
Electrophoretic fluid
US-2016313624-A1 · Oct 27, 2016 · US
Thermal transfer recording sheet
US-2015367665-A1 · Dec 24, 2015 · US
Electrowetting fluids
US-2015355456-A1 · Dec 10, 2015 · US
AZO compound and ink containing the compound
US-9200171-B2 · Dec 1, 2015 · US
Electrophoretic fluid
US-2015177587-A1 · Jun 25, 2015 · US
Electrowetting elements
US-8980141-B2 · Mar 17, 2015 · US
Electrowetting fluids
US-2015015931-A1 · Jan 15, 2015 · US