Leather-like sheet and fiber structure
US-2020048828-A1 · Feb 13, 2020 · US
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Thiazoles or hydrogenated thiazoles
Thiazoles or hydrogenated thiazoles · 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 | C09B44/20 |
| Official title | Thiazoles or hydrogenated thiazoles |
| Display label | Thiazoles or hydrogenated thiazoles |
| Total patents | 7 |
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 |
|---|---|
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cationic direct dyes
US-10494527-B2 · Dec 3, 2019 · US
Agents for dyeing keratin fibres, containing at least one dimeric, dicationic azo dye with special substitution pattern
US-10406089-B2 · Sep 10, 2019 · US
Agents for dyeing keratin fibres, containing at least one dimeric, dicationic azo dye and at least one non-ionic surfactant
US-10226648-B2 · Mar 12, 2019 · US
Cationic Direct Dyes
US-2018244924-A1 · Aug 30, 2018 · US
Agents for dyeing keratin fibres, containing at least one dimeric, dicationic azo dye and at least one non-ionic surfactant
US-2017296847-A1 · Oct 19, 2017 · US
Agents for dyeing keratin fibres, containing at least one dimeric, dicationic azo dye with special substitution pattern
US-2017266093-A1 · Sep 21, 2017 · US