Integrated process for the sustainable and autonomous co2-emission-free production of hydrogen and related system
US-2024200017-A1 · Jun 20, 2024 · 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 | C01B3/38 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 970 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 107 |
| 2016 | 97 |
| 2017 | 90 |
| 2018 | 88 |
| 2019 | 76 |
| 2020 | 72 |
| 2021 | 79 |
| 2022 | 67 |
| 2023 | 96 |
| 2024 | 92 |
| 2025 | 94 |
| 2026 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for controlling fuel reformer
US-9212057-B2 · Dec 15, 2015 · US
Carbon capture in fermentation
US-2015353965-A1 · Dec 10, 2015 · US
Process for reforming hydrocarbons
US-2015321913-A1 · Nov 12, 2015 · US
Process for recovering hydrogen and capturing carbon dioxide
US-2015323248-A1 · Nov 12, 2015 · US
Reducing gas generators and methods for generating a reducing gas
US-9178235-B2 · Nov 3, 2015 · US
Temporary desulphurization reactor for pre-treating a hydrocarbon feed before steam reforming with a view to hydrogen production
US-9174901-B2 · Nov 3, 2015 · US
Intergrated carbon dioxide conversion system for connecting oxyfuel combustion and catalytic conversion process
US-2015308676-A1 · Oct 29, 2015 · US
Fuel cell system
US-2015311552-A1 · Oct 29, 2015 · US
Hydrogen production module by integrated reaction/separation process, and hydrogen production reactor using same
US-2015298971-A1 · Oct 22, 2015 · US
Process for reforming hydrocarbons
US-9156689-B2 · Oct 13, 2015 · US
Steam methane reforming reactor of shell and tube type with cylindrical slots
US-9145299-B2 · Sep 29, 2015 · US
Process and equipment for the production of ammonia make-up syngas with an air separation unit as nitrogen source
US-9139431-B2 · Sep 22, 2015 · US
Method and apparatus for producing synthesis gas from biomass
US-9133027-B2 · Sep 15, 2015 · US
Hydrogen/syngas generator with sampling ports
US-9126831-B2 · Sep 8, 2015 · US
Silica-based hydrogen separation material and manufacturing method therefor, as well as hydrogen separation module and hydrogen production apparatus having the same
US-9126151-B2 · Sep 8, 2015 · US
Carbon capture in fermentation using blended gaseous substrate
US-9127296-B2 · Sep 8, 2015 · US
Burner for the production of synthesis gas
US-2015247635-A1 · Sep 3, 2015 · US
Fuel cell system and method for performing maintenance on fuel cell system
US-9118053-B2 · Aug 25, 2015 · US
Method and system for producing methanol using an oxygen transport membrane based reforming system
US-9115045-B2 · Aug 25, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B3/38?
- CPC C01B3/38 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C01B3/38 (Chemistry & Metallurgy)?
- Our database includes 970 publications tagged with this CPC code.
- Is patent activity under CPC C01B3/38 growing?
- Publication counts under this code: 92 in 2024 vs 94 in 2025 (latest complete years).