Process of manufacturing 2-(4'-diethylamino-2'-hydroxybenzoyl)benzoic acid hexyl ester
US-2024109838-A1 · Apr 4, 2024 · US
Crystallisation
Crystallisation · 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 | C07C227/42 |
| Official title | Crystallisation |
| Display label | Crystallisation |
| Total patents | 87 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 9 |
| 2017 | 11 |
| 2018 | 11 |
| 2019 | 5 |
| 2020 | 8 |
| 2021 | 8 |
| 2022 | 1 |
| 2023 | 7 |
| 2024 | 10 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for making solid methylglycine diacetate (MGDA) alkali metal salt, and solid particles
US-11208375-B2 · Dec 28, 2021 · US
Crystal of amino acid salt of 3-hydroxyisovaleric acid and production method thereof
US-2021261493-A1 · Aug 26, 2021 · US
Process for making solid methylglycine diacetate (mgda) alkali metal salt, and solid particles
US-2021206712-A1 · Jul 8, 2021 · US
Production method for 1-amino cyclopropane carboxylic acid nonhydrate
US-2021139413-A1 · May 13, 2021 · US
Process to prepare a solid composition of an amino acid diacetic acid
US-10836709-B2 · Nov 17, 2020 · US
Sodium methyl glycine-N,N-diacetic acid compound, process to prepare it and use thereof
US-10829719-B2 · Nov 10, 2020 · US
Systems with anti-fouling control and methods for controlling fouling within a channel of a plug flow crystallizer
US-10766014-B2 · Sep 8, 2020 · US
Production method for 1-amino cyclopropane carboxylic acid nonhydrate
US-10654793-B2 · May 19, 2020 · US
Sodium methyl glycine-n,n-diacetic acid compound, process to prepare it and use thereof
US-2020131455-A1 · Apr 30, 2020 · US
Process to prepare a solid composition of an amino acid diacetic acid
US-2020131115-A1 · Apr 30, 2020 · US
Production method for 1-amino cyclopropane carboxylic acid nonhydrate
US-2020095188-A1 · Mar 26, 2020 · US
Process for making solid methylglycine diacetate (mgda) alkali metal salt, and solid particles
US-2020095189-A1 · Mar 26, 2020 · US
Gamma-aminobutyric acid hemihydrate crystal and preparation method thereof
US-10487044-B2 · Nov 26, 2019 · US
Process for making a crystalline alkali metal salt of a complexing agent, and crystalline complexing agent
US-10421711-B2 · Sep 24, 2019 · US
Crystal of amino acid salt of 3-hydroxyisovaleric acid and production method thereof
US-2019210958-A1 · Jul 11, 2019 · US
Salts of carnitine derivatives and methods of production
US-2019047940-A1 · Feb 14, 2019 · US
Method for producing dicarboxylic acid compound
US-10189804-B2 · Jan 29, 2019 · US
Gamma-aminobutyric acid hemihydrate crystal and preparation method thereof
US-2018370901-A1 · Dec 27, 2018 · US
Process for making a crystalline alkali metal salt of a complexing agent, and crystalline complexing agent
US-2018354891-A1 · Dec 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C227/42?
- CPC C07C227/42 is the Cooperative Patent Classification code for “Crystallisation.”
- How many patents are filed under CPC C07C227/42 (Crystallisation)?
- Our database includes 87 publications tagged with this CPC code.
- Is patent activity under CPC C07C227/42 growing?
- Publication counts under this code: 10 in 2024 vs 5 in 2025 (latest complete years).