Disperse azo dyes, a process for the preparation thereof and the use thereof
US-10023742-B2 · Jul 17, 2018 · US
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by substituting radicals containing hetero atoms for —CN radicals
by substituting radicals containing hetero atoms for —CN radicals · 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 | C09B43/42 |
| Official title | by substituting radicals containing hetero atoms for —CN radicals |
| Display label | by substituting radicals containing hetero atoms for —CN radicals |
| Total patents | 4 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2018 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Disperse Azo Dyes, A Process for the Preparation Thereof and the Use Thereof
US-2016251517-A1 · Sep 1, 2016 · US
Disperse azo dyes, a process for the preparation thereof and the use thereof
US-9376570-B2 · Jun 28, 2016 · US
Disperse Azo Dyes, A Process for the Preparation Thereof and the Use Thereof
US-2015197637-A1 · Jul 16, 2015 · US