Color filter, solid-state imaging element, and image display device
US-12111487-B2 · Oct 8, 2024 · US
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Preparation from carboxylic acids or derivatives thereof {, e.g. anhydrides, amides, mononitriles, phthalimide, o-cyanobenzamide}
Preparation from carboxylic acids or derivatives thereof {, e.g. anhydrides, amides, mononitriles, phthalimide, o-cyanobenzamide} · 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 | C09B47/06 |
| Official title | Preparation from carboxylic acids or derivatives thereof {, e.g. anhydrides, amides, mononitriles, phthalimide, o-cyanobenzamide} |
| Display label | Preparation from carboxylic acids or derivatives thereof {, e.g. anhydrides, amides, mononitriles, phthalimide, o-cyanobenzamide} |
| Total patents | 5 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be growing based on the most recent years.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 1 |
| 2022 | 1 |
| 2024 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Phthalocyanine compound
US-2024116953-A1 · Apr 11, 2024 · US
Color filter, solid-state imaging element, and image display device
US-2022107450-A1 · Apr 7, 2022 · US
Phthalocyanine compound and method of preparing the same, color filter containing phthalocyanine compound, and coloring composition
US-9994580-B2 · Jun 12, 2018 · US
Phthalocyanine compound and method of preparing the same, color filter containing phthalocyanine compound, and coloring composition
US-2017327510-A1 · Nov 16, 2017 · US