Composite material and use thereof in desulfurization
US-12233397-B2 · Feb 25, 2025 · US
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Separation; Purification
Separation; Purification · 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 | C01B17/56 |
| Official title | Separation; Purification |
| Display label | Separation; Purification |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 6 |
| 2024 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Molecular sieve complex, composite material and application thereof
US-12233396-B2 · Feb 25, 2025 · US
Electrochemical process for gas separation
US-2024382901-A1 · Nov 21, 2024 · US
Improving sulfur recovery operations with processes based on novel CO2 over SO2 selective membranes and its combinations with SO2 over CO2 selective membranes
US-12017180-B2 · Jun 25, 2024 · US
Electrochemical process for gas separation
US-12005392-B2 · Jun 11, 2024 · US
Integrated method for producing sulphur dioxide quality suitable for a sulphuric acid process from calcium sulphate/phosphogypsum from phosphoric acid production
US-11845657-B2 · Dec 19, 2023 · US
Electrochemical process for gas separation
US-11806663-B2 · Nov 7, 2023 · US
Composite material and use thereof in desulfurization
US-2023149892-A1 · May 18, 2023 · US
Molecular sieve complex, composite material and application thereof
US-2023149891-A1 · May 18, 2023 · US
Integrated method for producing sulphur dioxide quality suitable for a sulphuric acid process from calcium sulphate/phosphogypsum from phosphoric acid production
US-2023126633-A1 · Apr 27, 2023 · US
Improving sulfur recovery operations with processes based on novel co2 over so2 selective membranes and its combinations with so2 over co2 selective membranes
US-2023001349-A1 · Jan 5, 2023 · US
Electrochemical process for gas separation
US-2022362708-A1 · Nov 17, 2022 · US
Sulfur dioxide mixture, and method of producing the same, and filling container
US-2022250908-A1 · Aug 11, 2022 · US
Electrochemical process for gas separation
US-2022184552-A1 · Jun 16, 2022 · US
Electrochemical process for gas separation
US-11298653-B2 · Apr 12, 2022 · US
Method for cleaning viscose production off-gases and catalysts for use in the method
US-11198093-B2 · Dec 14, 2021 · US
Electrochemical process for gas separation
US-2020023307-A1 · Jan 23, 2020 · US
Electrochemical process for gas separation
US-10464018-B2 · Nov 5, 2019 · US
A method for cleaning viscose production off-gases and catalysts for use in the method
US-2019255484-A1 · Aug 22, 2019 · US
Regenerative recovery of sulfur dioxide from effluent gases
US-2019201837-A1 · Jul 4, 2019 · US