Monoazo dyes with cyclic amine as fluorescence quenchers
US-2021079225-A1 · Mar 18, 2021 · US
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Azo-nitro dyes
Azo-nitro 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 | C09B56/005 |
| Official title | {Azo-nitro dyes} |
| Display label | Azo-nitro dyes |
| Total patents | 11 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Monoazo dyes with cyclic amine as fluorescence quenchers
US-10865309-B2 · Dec 15, 2020 · US
Monoazo dyes with cyclic amine as fluorescence quenchers
US-2019062560-A1 · Feb 28, 2019 · US
Monoazo dyes with cyclic amine as fluorescence quencers
US-10131789-B2 · Nov 20, 2018 · US
Monoazo dyes with cyclic amine as fluorescence quencers
US-2018215920-A1 · Aug 2, 2018 · US
Monoazo dyes with cyclic amine as fluorescence quenchers
US-9957393-B2 · May 1, 2018 · US
Monoazo dyes with cyclic amine as fluorescence quenchers
US-9951227-B2 · Apr 24, 2018 · US
Monoazo dyes with cyclic amine as fluorescence quenchers
US-2017369954-A1 · Dec 28, 2017 · US
Printing ink composition
US-9828507-B2 · Nov 28, 2017 · US
Monoazo dyes with cyclic amine as fluorescence quenchers
US-2016289779-A1 · Oct 6, 2016 · US
Printing ink composition
US-2016075879-A1 · Mar 17, 2016 · US