Membrane electrode assembly, solid oxide fuel cell, and electrochemical device
US-2021408569-A1 · Dec 30, 2021 · US
by electrolysis of steam
by electrolysis of steam · 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 | C25B1/042 |
| Official title | by electrolysis of steam |
| Display label | by electrolysis of steam |
| Total patents | 468 |
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 | 6 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 8 |
| 2019 | 8 |
| 2020 | 10 |
| 2021 | 27 |
| 2022 | 59 |
| 2023 | 83 |
| 2024 | 108 |
| 2025 | 120 |
| 2026 | 32 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Membrane electrode assembly, electrochemical device, and electrochemical system
US-2021399325-A1 · Dec 23, 2021 · US
Methods for hydrogen gas production through water electrolysis
US-11198941-B2 · Dec 14, 2021 · US
Intermediate temperature metal supported solid oxide electrolyzer
US-2021351418-A1 · Nov 11, 2021 · US
System for regulating the temperature and pressure of a high-temperature electrolyser (SOEC) reversibly operating as a fuel cell stack (SOFC)
US-11171342-B2 · Nov 9, 2021 · US
Methods and systems for syngas production and for efficient, flexible energy generation
US-11142832-B2 · Oct 12, 2021 · US
Electrochemical cell, electrochemical cell stack, and electrolyte for electrochemical cell
US-2021296677-A1 · Sep 23, 2021 · US
High temperature-type unitized regenerative fuel cell using water vapor and method of operating the same
US-11127967-B2 · Sep 21, 2021 · US
Water electrolysis or co-electrolysis reactor (SOEC) or fuel cell (SOFC) for pressurized operation and with a clamping system suitable for such operation
US-11108061-B2 · Aug 31, 2021 · US
Hydrogen production system
US-2021262100-A1 · Aug 26, 2021 · US
System for producing dihydrogen, and associated method
US-11060196-B2 · Jul 13, 2021 · US
Porous body, fuel cell including the same, and steam electrolysis apparatus including the same
US-2021175520-A1 · Jun 10, 2021 · US
A method for generating synthesis gas for use in hydroformylation reactions
US-2021130965-A1 · May 6, 2021 · US
Water electrolysis
US-2021087698-A1 · Mar 25, 2021 · US
Electrochemical reaction device and valuable material manufacturing system
US-2021079542-A1 · Mar 18, 2021 · US
High temperature-type unitized regenerative fuel cell using water vapor and method of operating the same
US-2021066741-A1 · Mar 4, 2021 · US
A method for generating gas mixtures comprising carbon monoxide and carbon dioxide for use in synthesis reactions
US-2021054510-A1 · Feb 25, 2021 · US
Cobalt-substituted perovskite compounds for solid oxide electrochemical cells
US-2021043946-A1 · Feb 11, 2021 · US
Oxidative coupling of methane methods and systems
US-2021024439-A1 · Jan 28, 2021 · US
Method for the preparation of synthesis gas
US-10889496-B2 · Jan 12, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25B1/042?
- CPC C25B1/042 is the Cooperative Patent Classification code for “by electrolysis of steam.”
- How many patents are filed under CPC C25B1/042 (by electrolysis of steam)?
- Our database includes 468 publications tagged with this CPC code.
- Is patent activity under CPC C25B1/042 growing?
- Publication counts under this code: 108 in 2024 vs 120 in 2025 (latest complete years).