Process of manufacturing 2-(4'-diethylamino-2'-hydroxybenzoyl)benzoic acid hexyl ester
US-2024109838-A1 · Apr 4, 2024 · US
by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters
by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters · 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 | C07C227/18 |
| Official title | by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters |
| Display label | by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters |
| Total patents | 299 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 36 |
| 2016 | 37 |
| 2017 | 27 |
| 2018 | 36 |
| 2019 | 26 |
| 2020 | 31 |
| 2021 | 15 |
| 2022 | 21 |
| 2023 | 23 |
| 2024 | 20 |
| 2025 | 20 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Carbon-based fluorescent tracers as oil reservoir nano-agents
US-9493700-B2 · Nov 15, 2016 · US
Process for preparing fluoroleucine alkyl esters
US-9493400-B2 · Nov 15, 2016 · US
Development of novel detergents for use in PCR systems
US-9493414-B2 · Nov 15, 2016 · US
Method of Producing An Aminocarboxylic Acid
US-2016311758-A1 · Oct 27, 2016 · US
Carbon-based fluorescent tracers as oil reservoir nano-agents
US-9469599-B2 · Oct 18, 2016 · US
Carbon-based fluorescent tracers as oil reservoir nano-agents
US-9464034-B2 · Oct 11, 2016 · US
Carbon-based fluorescent tracers as oil reservoir nano-agents
US-9453159-B2 · Sep 27, 2016 · US
Carbon-based fluorescent tracers as oil reservoir nano-agents
US-9447682-B2 · Sep 20, 2016 · US
Process for the preparation of an anticonvulsant agent pregabalin hydrochloride
US-9422230-B2 · Aug 23, 2016 · US
Mononuclear iron complex and organic synthesis reaction using same
US-9421532-B2 · Aug 23, 2016 · US
Salts, crystals, complexes, and derivatives of threonine diacetic acid, a process to prepare threonine diacetic acid, and the use thereof
US-9416095-B2 · Aug 16, 2016 · US
Selenocystine derivatives, alpha-methylselenocysteine, alpha-methylselenocysteine derivatives, and methods of making and using same
US-2016221941-A1 · Aug 4, 2016 · US
Lipid formulations
US-9394234-B2 · Jul 19, 2016 · US
Vinyl monomers having chelating functionality
US-9376373-B2 · Jun 28, 2016 · US
New Salts, Crystals, Complexes, and Derivatives of Threonine Diacetic Acid, a Process to Prepare threonine Diacetic Acid, and the Use Thereof
US-2016159730-A1 · Jun 9, 2016 · US
Preparation of 18F-fluciclovine
US-9359288-B2 · Jun 7, 2016 · US
Process for recovering noble products in a process for producing dialkylaminoalkyl (meth) acrylates
US-9359287-B2 · Jun 7, 2016 · US
Method for producing peptide
US-9353148-B2 · May 31, 2016 · US
Process for the preparation of an anticonvulsant agent pregabalin hydrochloride
US-2016122289-A1 · May 5, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C227/18?
- CPC C07C227/18 is the Cooperative Patent Classification code for “by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters.”
- How many patents are filed under CPC C07C227/18 (by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters)?
- Our database includes 299 publications tagged with this CPC code.
- Is patent activity under CPC C07C227/18 growing?
- Publication counts under this code: 20 in 2024 vs 20 in 2025 (latest complete years).