Efficient conversion of methane to methanesulfonic acid via trifluoroacetylsulfuric acid
US-12497354-B2 · Dec 16, 2025 · US
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by sulfoxidation, i.e. by reaction with sulfur dioxide and oxygen with formation of sulfo or halosulfonyl groups
by sulfoxidation, i.e. by reaction with sulfur dioxide and oxygen with formation of sulfo or halosulfonyl groups · 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 | C07C303/14 |
| Official title | by sulfoxidation, i.e. by reaction with sulfur dioxide and oxygen with formation of sulfo or halosulfonyl groups |
| Display label | by sulfoxidation, i.e. by reaction with sulfur dioxide and oxygen with formation of sulfo or halosulfonyl groups |
| Total patents | 18 |
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 | 5 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Unsaturated fatty alcohol derivatives from natural oil metathesis
US-11760889-B2 · Sep 19, 2023 · US
Efficient conversion of methane to methanesulfonic acid via trifluoroacetylsulfuric acid
US-2023242477-A1 · Aug 3, 2023 · US
Process for the manufacturing of alkanesulfonic acids
US-11247967-B2 · Feb 15, 2022 · US
Process for the manufacturing of alkanesulfonic acids
US-2021094908-A1 · Apr 1, 2021 · US
Unsaturated fatty alcohol derivatives from natural oil metathesis
US-2020347245-A1 · Nov 5, 2020 · US
Process for making renewable surfactant intermediates and surfactants from fats and oils and products thereof
US-10800975-B2 · Oct 13, 2020 · US
Unsaturated fatty alcohol derivatives from natural oil metathesis
US-10745347-B2 · Aug 18, 2020 · US
Hydrocarbon recovery composition and a method for use thereof
US-2019093002-A1 · Mar 28, 2019 · US
Process for making renewable surfactant intermediates and surfactants from fats and oils and products thereof
US-2018251411-A1 · Sep 6, 2018 · US
Process for making renewable surfactant intermediates and surfactants from fats and oils and products thereof
US-9994497-B2 · Jun 12, 2018 · US
Method for producing oxysulphidic and fluorinated derivatives in an ionic liquid medium
US-2018037543-A1 · Feb 8, 2018 · US
Unsaturated fatty alcohol alkoxylates from natural oil metathesis
US-9708251-B2 · Jul 18, 2017 · US
Process for preparing an internal olefin sulfonate
US-9221750-B2 · Dec 29, 2015 · US
Process for making renewable surfactant intermediates and surfactants from fats and oils and products thereof
US-2015240187-A1 · Aug 27, 2015 · US
Unsaturated fatty alcohol derivatives from natural oil metathesis
US-2015087521-A1 · Mar 26, 2015 · US
Unsaturated fatty alcohol alkoxylates from natural oil metathesis
US-2015087724-A1 · Mar 26, 2015 · US
Process for preparing an internal olefin sulfonate
US-2015073168-A1 · Mar 12, 2015 · US