Systems, Devices and Methods for Input and Output Pressure Management of Air Breathing Engine Reformers
US-2024017993-A1 · Jan 18, 2024 · US
containing a purification step for the hydrogen or the synthesis gas
containing a purification step for the hydrogen or the synthesis gas · 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 | C01B2203/04 |
| Official title | containing a purification step for the hydrogen or the synthesis gas |
| Display label | containing a purification step for the hydrogen or the synthesis gas |
| Total patents | 278 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 31 |
| 2016 | 39 |
| 2017 | 31 |
| 2018 | 19 |
| 2019 | 14 |
| 2020 | 20 |
| 2021 | 9 |
| 2022 | 21 |
| 2023 | 31 |
| 2024 | 26 |
| 2025 | 32 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Integrated electrical power and chemical production using fuel cells
US-2016351931-A1 · Dec 1, 2016 · US
Method to produce methane rich fuel gas from carbonaceous feedstocks using a steam hydrogasification reactor and a water gas shift reactor
US-9493721-B2 · Nov 15, 2016 · US
Process to prepare a mixture of hydrogen and carbon monoxide from a liquid hydrocarbon feedstock containing a certain amount of ash
US-9487400-B2 · Nov 8, 2016 · US
Clay mineral supported catalysts
US-2016318003-A1 · Nov 3, 2016 · US
Process for the production of synthesis gas
US-2016304424-A1 · Oct 20, 2016 · US
Method for starting-up a gas to liquid process
US-9464237-B2 · Oct 11, 2016 · US
Integration of Molten Carbonate Fuel Cells in Fischer-Tropsch Synthesis
US-2016293985-A1 · Oct 6, 2016 · US
Integrated electrical power and chemical production using fuel cells
US-9455463-B2 · Sep 27, 2016 · US
Ammonia production by integrated intensified processes
US-9416019-B2 · Aug 16, 2016 · US
Integrated power generation and chemical production using fuel cells at a reduced electrical efficiency
US-9419295-B2 · Aug 16, 2016 · US
Process for the conversion of a hydrocarbon feedstock into a synthesis gas
US-9409774-B2 · Aug 9, 2016 · US
Method for producing nanocarbon and catalytic reaction device for producing nanocarbon
US-9403682-B2 · Aug 2, 2016 · US
Reactor vessels with pressure and heat transfer features for producing hydrogen-based fuels and structural elements, and associated systems and methods
US-9395081-B2 · Jul 19, 2016 · US
Use of lanthanide oxides to reduce sintering of catalysts
US-2016199827-A1 · Jul 14, 2016 · US
A process for the production of olefins through ft based synthesis
US-2016186069-A1 · Jun 30, 2016 · US
A process for the production of olefins through ft based synthesis
US-2016177187-A1 · Jun 23, 2016 · US
Integration of molten carbonate fuel cells in a refinery setting
US-9362580-B2 · Jun 7, 2016 · US
Method and system for producing a synthesis gas using an oxygen transport membrane based reforming system with secondary reforming
US-9352296-B2 · May 31, 2016 · US
Integration of molten carbonate fuel cells for synthesis of nitrogen compounds
US-9343763-B2 · May 17, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B2203/04?
- CPC C01B2203/04 is the Cooperative Patent Classification code for “containing a purification step for the hydrogen or the synthesis gas.”
- How many patents are filed under CPC C01B2203/04 (containing a purification step for the hydrogen or the synthesis gas)?
- Our database includes 278 publications tagged with this CPC code.
- Is patent activity under CPC C01B2203/04 growing?
- Publication counts under this code: 26 in 2024 vs 32 in 2025 (latest complete years).