Inkjet ink and tablet printed matter
US-2024334954-A1 · Oct 10, 2024 · US
Addition of dyes or pigments, e.g. in combination with optical brighteners
Addition of dyes or pigments, e.g. in combination with optical brighteners · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A23L5/42 |
| Official title | Addition of dyes or pigments, e.g. in combination with optical brighteners |
| Display label | Addition of dyes or pigments, e.g. in combination with optical brighteners |
| Total patents | 74 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 8 |
| 2017 | 7 |
| 2018 | 6 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 12 |
| 2022 | 7 |
| 2023 | 9 |
| 2024 | 9 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Food-product browning agent
US-2024206504-A1 · Jun 27, 2024 · US
Solvent-based inks and coatings for food contact applications
US-11927585-B2 · Mar 12, 2024 · US
Natural crystalline colorant and process for production
US-11827768-B2 · Nov 28, 2023 · US
Natural crystalline colorant and process for production
US-2023374266-A1 · Nov 23, 2023 · US
Pelletized Colorants Comprising A Pigment-Protein Complex And Food Products Including The Same
US-2023371560-A1 · Nov 23, 2023 · US
Natural crystalline colorant and process for production
US-11753525-B2 · Sep 12, 2023 · US
Solvent-based inks and coatings for food contact applications
US-2023243805-A1 · Aug 3, 2023 · US
Pelletized colorants comprising a pigment-protein complex and food products including the same
US-11659852-B2 · May 30, 2023 · US
Natural crystalline colorant and process for production
US-2023151185-A1 · May 18, 2023 · US
Beverage compositions comprising a printed image and methods of making the same
US-2023148651-A1 · May 18, 2023 · US
Natural crystalline colorant and process for production
US-11578187-B2 · Feb 14, 2023 · US
Yeast cell wall-derived decomposition-containing composition, production method therefor, and usage therefor
US-2022338513-A1 · Oct 27, 2022 · US
Processes for obtaining colors from algal biomasses
US-11473114-B2 · Oct 18, 2022 · US
Preparation method and application of astaxanthin H1-, or H2- or J-aggregate water dispersion system
US-11470861-B2 · Oct 18, 2022 · US
Natural crystalline colorant and process for production
US-2022220282-A1 · Jul 14, 2022 · US
Surface-reacted calcium carbonate in food
US-2022104525-A1 · Apr 7, 2022 · US
Edible caramel color composition
US-11291217-B2 · Apr 5, 2022 · US
Coating composition based on coloring foodstuffs
US-11254833-B2 · Feb 22, 2022 · US
Compounds, compositions and method for coloring edible materials
US-2021347804-A1 · Nov 11, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A23L5/42?
- CPC A23L5/42 is the Cooperative Patent Classification code for “Addition of dyes or pigments, e.g. in combination with optical brighteners.”
- How many patents are filed under CPC A23L5/42 (Addition of dyes or pigments, e.g. in combination with optical brighteners)?
- Our database includes 74 publications tagged with this CPC code.
- Is patent activity under CPC A23L5/42 growing?
- Publication counts under this code: 9 in 2024 vs 7 in 2025 (latest complete years).