Strong gas process and apparatus for sulfuric acid production
US-2025178899-A1 · Jun 5, 2025 · US
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of sulfuric acid
of sulfuric acid · 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 | C01B17/503 |
| Official title | {of sulfuric acid} |
| Display label | of sulfuric acid |
| Total patents | 6 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for conversion of sulfur trioxide and hydrogen production
US-11390522-B2 · Jul 19, 2022 · US
Process for conversion of sulfur trioxide and hydrogen production
US-2021221683-A1 · Jul 22, 2021 · US
Method for production of sulfuric acid from sulfur containing feeds with gas quenching
US-10532930-B2 · Jan 14, 2020 · US
Method for production of sulfuric acid from sulfur containing feeds with gas quenching
US-2019308879-A1 · Oct 10, 2019 · US
Hydrogen production process
US-8961922-B2 · Feb 24, 2015 · US