Compositions
US-2021403777-A1 · Dec 30, 2021 · US
Use of additives {(anti-oxidant compositions or compositions inhibiting chemical change in general C09K15/00)}
Use of additives {(anti-oxidant compositions or compositions inhibiting chemical change in general C09K15/00)} · 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 | C07B63/04 |
| Official title | Use of additives {(anti-oxidant compositions or compositions inhibiting chemical change in general C09K15/00)} |
| Display label | Use of additives {(anti-oxidant compositions or compositions inhibiting chemical change in general C09K15/00)} |
| Total patents | 97 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 8 |
| 2017 | 3 |
| 2018 | 10 |
| 2019 | 7 |
| 2020 | 18 |
| 2021 | 15 |
| 2022 | 11 |
| 2023 | 7 |
| 2024 | 9 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Manufacturing method of perovskite film, composition for manufacturing perovskite film, and display device
US-2021367150-A1 · Nov 25, 2021 · US
Process for the separation of optical isomers of racemic 3-alkylpiperidine-carboxylic acid ethyl esters
US-11091436-B2 · Aug 17, 2021 · US
Quinone methide and ammonium salt antipolymerant composition and method
US-2021108141-A1 · Apr 15, 2021 · US
Novel alkyldiphenylmethane protective agent
US-2021079028-A1 · Mar 18, 2021 · US
Palladium catalysts with improved performance in biological environments
US-10882035-B2 · Jan 5, 2021 · US
Method for purifying trifluoromethylpyridines
US-10882824-B2 · Jan 5, 2021 · US
Method for producing 2-acetyl-4H,9H-naphtho[2,3-b]furan-4,9-dione
US-10875835-B2 · Dec 29, 2020 · US
Compositions of oxygenated amines and quinone methides as antifoulants for vinylic monomers
US-10869444-B2 · Dec 22, 2020 · US
Alkyldiphenylmethane protective agent
US-10870667-B2 · Dec 22, 2020 · US
Organic reactions carried out in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose
US-10836688-B2 · Nov 17, 2020 · US
Novel alkyldiphenylmethane protective agent
US-2020325163-A1 · Oct 15, 2020 · US
Aluminum Container Containing Dicarbonate
US-2020277129-A1 · Sep 3, 2020 · US
Method for producing aldehyde and method for producing alcohol
US-2020270186-A1 · Aug 27, 2020 · US
Method for producing 2-acetyl-4h,9h-naphtho[2,3-b]furan-4,9-dione
US-2020190049-A1 · Jun 18, 2020 · US
Chemical liquid purification method and chemical liquid
US-2020164294-A1 · May 28, 2020 · US
Organic reactions carried out in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose
US-2020148610-A1 · May 14, 2020 · US
Process for the Separation of Optical Isomers of Racemic 3-Alkylpiperidine-Carboxylic Acid Ethyl Esters
US-2020131126-A1 · Apr 30, 2020 · US
Process for the separation of C5 hydrocarbons present in streams prevalently containing C4 products used for the production of high-octane hydrocarbon compounds by the selective dimerization of isobutene
US-10618857-B2 · Apr 14, 2020 · US
Method for producing 2-acetyl-4H,9H-naphtho[2,3-B]furan-4,9-dione
US-10611746-B2 · Apr 7, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07B63/04?
- CPC C07B63/04 is the Cooperative Patent Classification code for “Use of additives {(anti-oxidant compositions or compositions inhibiting chemical change in general C09K15/00)}.”
- How many patents are filed under CPC C07B63/04 (Use of additives {(anti-oxidant compositions or compositions inhibiting chemical change in general C09K15/00)})?
- Our database includes 97 publications tagged with this CPC code.
- Is patent activity under CPC C07B63/04 growing?
- Publication counts under this code: 9 in 2024 vs 2 in 2025 (latest complete years).