Method and system for treating sulfur dioxide containing stream by catalytic oxidation and acid aqueous absorption
US-2026042058-A1 · Feb 12, 2026 · US
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containing vanadium
containing vanadium · 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 | C01B17/79 |
| Official title | containing vanadium |
| Display label | containing vanadium |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 1 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
A process for conversion of aqueous hydrogen sulfide to sulfuric acid
US-2025154005-A1 · May 15, 2025 · US
Production of sulfuric acid employing an o2 rich stream
US-2024417256-A1 · Dec 19, 2024 · US
Hydrogen sulfide conversion
US-2024229251-A9 · Jul 11, 2024 · US
Hydrogen sulfide conversion
US-2024133049-A1 · Apr 25, 2024 · US
Process for the removal of particulate matter from an aqueous stream
US-2022401863-A1 · Dec 22, 2022 · US
Method for production of sulfur and sulfuric acid
US-10981788-B2 · Apr 20, 2021 · US
Vanadium-based catalyst and preparation method therefor
US-10940462-B2 · Mar 9, 2021 · US
Shaped catalyst body in the form of tetralobes having a central through-passage
US-2020398255-A1 · Dec 24, 2020 · US
Process for production of sulfuric acid
US-10829376-B2 · Nov 10, 2020 · US
Method for production of sulfur and sulfuric acid
US-2020317519-A1 · Oct 8, 2020 · US
Vanadium-based catalyst and preparation method therefor
US-2020156045-A1 · May 21, 2020 · US
Method and device for producing sulfuric acid
US-10647577-B2 · May 12, 2020 · US
Method and plant design for reduction of start-up sulfur oxide emissions in sulfuric acid production
US-10633251-B2 · Apr 28, 2020 · US
Method and device for producing sulfuric acid
US-10435299-B2 · Oct 8, 2019 · US
Shaped catalyst body for the catalytic oxidation of SO2 into SO3
US-10307741-B2 · Jun 4, 2019 · US
Method and plant design for reduction of start-up sulfur oxide emissions in sulfuric acid production
US-2019047859-A1 · Feb 14, 2019 · US
Method and device for producing sulfuric acid
US-2018244522-A1 · Aug 30, 2018 · US
Method and device for producing sulfuric acid
US-2018237299-A1 · Aug 23, 2018 · US
Process for production of sulfuric acid
US-2018127271-A1 · May 10, 2018 · US