MULTI-CELL COx ELECTROLYZER STACKS
US-2024060194-A1 · Feb 22, 2024 · US
Diaphragms; Spacing elements
Diaphragms; Spacing elements · 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 | C25B13/00 |
| Official title | Diaphragms; Spacing elements |
| Display label | Diaphragms; Spacing elements |
| Total patents | 106 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 16 |
| 2022 | 22 |
| 2023 | 20 |
| 2024 | 11 |
| 2025 | 20 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Water electrolysis system and method of operating water electrolysis system
US-2023279558-A1 · Sep 7, 2023 · US
Method for removing non-proton cationic impurities from an electrochemical cell and an electrochemical cell
US-11739433-B2 · Aug 29, 2023 · US
Electrochemical Device
US-2023265570-A1 · Aug 24, 2023 · US
Systems and methods of ammonia synthesis
US-2023203686-A1 · Jun 29, 2023 · US
Carbon Dioxide Gas-Phase Reduction Device and Method for Producing Porous Electrode-Supported Electrolyte Membrane
US-2023160081-A1 · May 25, 2023 · US
Electrode catalyst for water electrolysis cell, water electrolysis cells, and water electrolysis devices
US-2023143685-A1 · May 11, 2023 · US
Electrolysis unit and electrolyser
US-11584998-B2 · Feb 21, 2023 · US
Catalyst-ionomer systems and methods for gas-phase electrolysis
US-2022396889-A1 · Dec 15, 2022 · US
Environment control system utilizing an electrochemical cell
US-11504494-B2 · Nov 22, 2022 · US
Electrode for electrochemical evolution of hydrogen
US-2022349074-A1 · Nov 3, 2022 · US
Carbon dioxide treatment apparatus, carbon dioxide treatment method, and method for producing carbon compound
US-2022307145-A1 · Sep 29, 2022 · US
Electrochemical hydrogen compressor
US-2022298656-A1 · Sep 22, 2022 · US
Electrochemical device
US-2022298658-A1 · Sep 22, 2022 · US
Solid electrolyte-based photoelectrochemical cell for production of pure hydrogen peroxide solution, and method of fabricating same
US-2022290313-A1 · Sep 15, 2022 · US
Zirconium-based metal-organic framework material and preparation method thereof
US-2022227793-A1 · Jul 21, 2022 · US
Chamber frame element, electrolyzer, and electrodialysis cell
US-11365484-B2 · Jun 21, 2022 · US
Electrohydrogenation of nitriles
US-11359295-B2 · Jun 14, 2022 · US
Conversion of carbonate into syngas or c2+ products in electrolysis cell
US-2022170166-A1 · Jun 2, 2022 · US
Bipolar plate for an electrochemical reactor
US-2022162763-A1 · May 26, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25B13/00?
- CPC C25B13/00 is the Cooperative Patent Classification code for “Diaphragms; Spacing elements.”
- How many patents are filed under CPC C25B13/00 (Diaphragms; Spacing elements)?
- Our database includes 106 publications tagged with this CPC code.
- Is patent activity under CPC C25B13/00 growing?
- Publication counts under this code: 11 in 2024 vs 20 in 2025 (latest complete years).