Enhanced fluorescence readout and reduced inhibition for nucleic acid amplification tests
US-2019119737-A1 · Apr 25, 2019 · US
mixtures containing one azo dye
mixtures containing one azo dye · 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 | C09B67/0041 |
| Official title | {mixtures containing one azo dye} |
| Display label | mixtures containing one azo dye |
| Total patents | 119 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 17 |
| 2017 | 14 |
| 2018 | 16 |
| 2019 | 16 |
| 2020 | 17 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 8 |
| 2024 | 6 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Leuco colorants in combination with a second whitening agent as bluing agents in laundry care compositions
US-2019112556-A1 · Apr 18, 2019 · US
Coloring composition, ink jet recording ink, ink jet recording method, and ink jet printer cartridge
US-2018371254-A1 · Dec 27, 2018 · US
Whitening agents for cellulosic substrates
US-10155868-B2 · Dec 18, 2018 · US
Dye compound, composition comprising dye compound, and display device using dye compound
US-2018355179-A1 · Dec 13, 2018 · US
Magenta toner for electrostatic charge image development
US-10146147-B2 · Dec 4, 2018 · US
Coloring composition, ink jet recording ink, ink jet recording method, and ink jet printer cartridge
US-2018340085-A1 · Nov 29, 2018 · US
Preparation of aqueous green inkjet compositions
US-10093818-B2 · Oct 9, 2018 · US
Magenta toner for electrostatic charge image development
US-2018284631-A1 · Oct 4, 2018 · US
Compound having azo skeleton, pigment dispersant, pigment composition, pigment dispersion, and toner
US-10087328-B2 · Oct 2, 2018 · US
Magenta inks
US-2018273784-A1 · Sep 27, 2018 · US
Coloring composition, color filter, pattern forming method, solid-state imaging device, and image display device
US-2018252852-A1 · Sep 6, 2018 · US
Magenta inks
US-10047233-B2 · Aug 14, 2018 · US
Whitening agents for cellulosic substrates
US-9976035-B2 · May 22, 2018 · US
Colored Resin Composition Exhibiting Pleochroism, and Molded Plastics Manufactured Using Same
US-2018127566-A1 · May 10, 2018 · US
Compound having azo skeleton structure, pigment-dispersing agent, pigment composition, pigment dispersion, and toner
US-9926450-B2 · Mar 27, 2018 · US
Detailing agent for three-dimensional (3d) printing
US-2018022923-A1 · Jan 25, 2018 · US
Colored resin composition exhibiting pleochroism, and molded plastics manufactured using same
US-9868849-B2 · Jan 16, 2018 · US
Compound having azo skeleton structure, pigment dispersant, pigment composition, pigment dispersion, and toner
US-9834683-B2 · Dec 5, 2017 · US
Preparation of aqueous green dispersions
US-9828514-B2 · Nov 28, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09B67/0041?
- CPC C09B67/0041 is the Cooperative Patent Classification code for “mixtures containing one azo dye.”
- How many patents are filed under CPC C09B67/0041 (mixtures containing one azo dye)?
- Our database includes 119 publications tagged with this CPC code.
- Is patent activity under CPC C09B67/0041 growing?
- Publication counts under this code: 6 in 2024 vs 1 in 2025 (latest complete years).