Oils without unwanted contaminants
US-12540292-B2 · Feb 3, 2026 · US
Removing colour by chemical reaction, e.g. bleaching
Removing colour by chemical reaction, e.g. bleaching · 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 | A23L5/49 |
| Official title | Removing colour by chemical reaction, e.g. bleaching |
| Display label | Removing colour by chemical reaction, e.g. bleaching |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 3 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing processed plant protein-containing composition
US-2025380724-A1 · Dec 18, 2025 · US
Improvements in or relating to organic compounds
US-2025380723-A1 · Dec 18, 2025 · US
Mineral composition
US-12220681-B2 · Feb 11, 2025 · US
Treated Soybean Oil
US-2024373871-A1 · Nov 14, 2024 · US
Oils without unwanted contaminants
US-2024117268-A1 · Apr 11, 2024 · US
Oils without unwanted contaminants
US-11891584-B2 · Feb 6, 2024 · US
Removal of unwanted mineral oil hydrocarbons
US-2024034954-A1 · Feb 1, 2024 · US
Method for suppressing coloring of oil/fat composition
US-2023371559-A1 · Nov 23, 2023 · US
Removal of unwanted mineral oil hydrocarbons
US-2023354857-A1 · Nov 9, 2023 · US
Removal of unwanted mineral oil hydrocarbons
US-2023332070-A1 · Oct 19, 2023 · US
Removal of unwanted mineral oil hydrocarbons
US-2023272302-A1 · Aug 31, 2023 · US
Plant-derived protein purification
US-2023056300-A1 · Feb 23, 2023 · US
Plant-derived protein purification
US-11523623-B2 · Dec 13, 2022 · US
Method for suppressing coloration of frying oil and fat composition, method for manufacturing frying oil and fat composition, and coloration-suppressing agent
US-2022104510-A1 · Apr 7, 2022 · US
Mineral composition
US-2022048008-A1 · Feb 17, 2022 · US
Methods of producing decolorized beet products and compositions produced therefrom
US-11160298-B1 · Nov 2, 2021 · US
Peroxide dispersions
US-10925302-B2 · Feb 23, 2021 · US
Plant-derived protein purification
US-2020229461-A1 · Jul 23, 2020 · US
Oils without unwanted contaminants
US-2020056116-A1 · Feb 20, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A23L5/49?
- CPC A23L5/49 is the Cooperative Patent Classification code for “Removing colour by chemical reaction, e.g. bleaching.”
- How many patents are filed under CPC A23L5/49 (Removing colour by chemical reaction, e.g. bleaching)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC A23L5/49 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).