Light-based system and method for shaping and treating hair
US-2024139540-A1 · May 2, 2024 · US
chemical
chemical · 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 | A45D7/04 |
| Official title | chemical |
| Display label | chemical |
| Total patents | 183 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 29 |
| 2016 | 31 |
| 2017 | 38 |
| 2018 | 23 |
| 2019 | 15 |
| 2020 | 13 |
| 2021 | 9 |
| 2022 | 8 |
| 2023 | 6 |
| 2024 | 6 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hair method
US-2016356684-A1 · Dec 8, 2016 · US
Aqueous oxidizing composition
US-9492362-B2 · Nov 15, 2016 · US
Method of treating hair
US-2016303013-A1 · Oct 20, 2016 · US
Hair treatment method, kit, recipient, and use thereof
US-9468778-B2 · Oct 18, 2016 · US
Composition
US-2016296439-A1 · Oct 13, 2016 · US
Method for straightening, conditioning and colouring hair, especially hair with substantial curl
US-2016287502-A1 · Oct 6, 2016 · US
Method of treating hair
US-2016287496-A1 · Oct 6, 2016 · US
Method for Hair Frizz Reduction
US-2016287495-A1 · Oct 6, 2016 · US
Compositions for keratin fibers
US-2016263010-A1 · Sep 15, 2016 · US
Hair straightening with carbocisteine
US-2016263000-A1 · Sep 15, 2016 · US
Hair cosmetic composition
US-2016263009-A1 · Sep 15, 2016 · US
Paperboard packaging containers and related methods of use
US-9439490-B2 · Sep 13, 2016 · US
Cosmetic composition comprising a cation, a solid fatty substance and a sorbitan ester, and cosmetic treatment process
US-2016235651-A1 · Aug 18, 2016 · US
Process for treating keratin fibres with an oxidised polysaccharide and a sphingosine compound
US-2016220469-A1 · Aug 4, 2016 · US
Beauty Care Product
US-2016158124-A1 · Jun 9, 2016 · US
Device for self-foaming oxidation dyeing, ready-for-use self-foaming composition and method for dyeing keratinous fibres
US-9358187-B2 · Jun 7, 2016 · US
Hair colouring method
US-9345658-B2 · May 24, 2016 · US
Cosmetic composition comprising an aqueous phase and a fatty phase that are visually distinct
US-2016120771-A1 · May 5, 2016 · US
Beauty care product
US-9289045-B2 · Mar 22, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A45D7/04?
- CPC A45D7/04 is the Cooperative Patent Classification code for “chemical.”
- How many patents are filed under CPC A45D7/04 (chemical)?
- Our database includes 183 publications tagged with this CPC code.
- Is patent activity under CPC A45D7/04 growing?
- Publication counts under this code: 6 in 2024 vs 5 in 2025 (latest complete years).