Method and system for treating sulfur dioxide containing stream by catalytic oxidation and acid aqueous absorption
US-2026042058-A1 · Feb 12, 2026 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C01B17/80 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 16 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2019 | 2 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for production of elemental sulfur and sulfuric acid
US-12545580-B2 · Feb 10, 2026 · US
Strong gas process and apparatus for sulfuric acid production
US-2025178899-A1 · Jun 5, 2025 · US
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
Method for production of elemental sulfur by part or fully catalytic oxidation of Claus tail gas
US-11807527-B2 · Nov 7, 2023 · US
Method for production of sulfur and sulfuric acid
US-11691877-B2 · Jul 4, 2023 · US
Revamping of a claus plant with a sulfuric acid plan
US-11618677-B2 · Apr 4, 2023 · US
Method for production of elemental sulfur by part or fully catalytic oxidation of claus tail gas
US-2022234891-A1 · Jul 28, 2022 · US
Method for production of elemental sulfur and sulfuric acid
US-2022227625-A1 · Jul 21, 2022 · US
Revamping of a claus plant with a sulfuric acid plan
US-2022177306-A1 · Jun 9, 2022 · US
Method for production of sulfur and sulfuric acid
US-2022177307-A1 · Jun 9, 2022 · US
System and a method for producing aqueous sulphuric acid
US-10465339-B2 · Nov 5, 2019 · US
System and a method for producing aqueous sulphuric acid
US-2019177914-A1 · Jun 13, 2019 · US
Sulphuric acid production with recycle of desulphurized gas
US-9045342-B2 · Jun 2, 2015 · US
Process for production of sulphuric acid
US-8926936-B2 · Jan 6, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B17/80?
- CPC C01B17/80 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C01B17/80 (Chemistry & Metallurgy)?
- Our database includes 16 publications tagged with this CPC code.
- Is patent activity under CPC C01B17/80 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).