Optimized process for synthesizing alkyl methacrylate by reducing unwanted byproducts
US-2023416184-A1 · Dec 28, 2023 · US
of esters of sulfuric acids
of esters of sulfuric acids · 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 | C07C303/24 |
| Official title | of esters of sulfuric acids |
| Display label | of esters of sulfuric acids |
| Total patents | 78 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 4 |
| 2017 | 6 |
| 2018 | 12 |
| 2019 | 7 |
| 2020 | 5 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 11 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Monomer for polymer gel, polymer gel and preparation therefor
US-2023365496-A1 · Nov 16, 2023 · US
Process for producing a bio-based surfactant
US-2023329992-A1 · Oct 19, 2023 · US
Processes for making concentrated surfactant blends
US-2023279312-A1 · Sep 7, 2023 · US
Process for the preparation of organosulfate salts of amino acids esters
US-11739052-B2 · Aug 29, 2023 · US
Efficient conversion of methane to methanesulfonic acid via trifluoroacetylsulfuric acid
US-2023242477-A1 · Aug 3, 2023 · US
Methanol and sulfuric acid co-production system
US-2023174443-A1 · Jun 8, 2023 · US
Process for making biobased products from sugars
US-2022363628-A1 · Nov 17, 2022 · US
Higher secondary alcohol alkoxylate precursor, higher secondary alcohol alkoxylate adduct and higher secondary alkyl ether sulfate ester salt, and methods for producing these
US-2022324781-A1 · Oct 13, 2022 · US
Process for the preparation of organosulfate salts of amino acids esters
US-2022144753-A1 · May 12, 2022 · US
Methods of making a polyfluorinated allyl ether and compounds relating to the methods
US-11292763-B2 · Apr 5, 2022 · US
Process for producing a bio-based surfactant
US-2021353517-A1 · Nov 18, 2021 · US
Anionic surfactants and washing and cleaning agents containing same
US-2021340463-A1 · Nov 4, 2021 · US
Water-soluble diacetylene, photolithography composition comprising water-soluble diacetylene monomer and conductive polymer, and fine pattern preparation method using same
US-11131925-B2 · Sep 28, 2021 · US
Methods of making a polyfluorinated allyl ether and compounds relating to the methods
US-2021276946-A1 · Sep 9, 2021 · US
Electrolyte solution, electrochemical device, and lithium ion secondary battery and module
US-2021194057-A1 · Jun 24, 2021 · US
Methods for producing a methanol precursor, methanol, and a methyl ester from methane in high purities
US-11021429-B1 · Jun 1, 2021 · US
Anionic surfactants and detergents comprising them
US-10988710-B2 · Apr 27, 2021 · US
Alkyl sulfate ester or salt of same
US-2020399211-A1 · Dec 24, 2020 · US
Reagents for fluorosulfating alcohols or amines
US-10836717-B2 · Nov 17, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C303/24?
- CPC C07C303/24 is the Cooperative Patent Classification code for “of esters of sulfuric acids.”
- How many patents are filed under CPC C07C303/24 (of esters of sulfuric acids)?
- Our database includes 78 publications tagged with this CPC code.
- Is patent activity under CPC C07C303/24 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).