Compound including basic dye and amino acid, hair dyeing dye, and hair dyeing composition
US-10738019-B2 · Aug 11, 2020 · US
Preparations with cationic dyes · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C09B67/0075 |
| Official title | {Preparations with cationic dyes} |
| Display label | Preparations with cationic dyes |
| Total patents | 4 |
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be growing based on the most recent years.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2018 | 1 |
| 2020 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-10738019-B2 · Aug 11, 2020 · US
US-2020071283-A1 · Mar 5, 2020 · US
US-9989476-B2 · Jun 5, 2018 · US
US-2016305890-A1 · Oct 20, 2016 · US