Membrane electrode assembly, laminating method, electrochemical cell, stack, and electrolyzer
US-2024093392-A1 · Mar 21, 2024 · US
characterised by shape or form
characterised by shape or form · 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 | C25B13/02 |
| Official title | characterised by shape or form |
| Display label | characterised by shape or form |
| Total patents | 475 |
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 | 13 |
| 2016 | 20 |
| 2017 | 11 |
| 2018 | 17 |
| 2019 | 23 |
| 2020 | 26 |
| 2021 | 47 |
| 2022 | 36 |
| 2023 | 63 |
| 2024 | 76 |
| 2025 | 107 |
| 2026 | 36 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Microporous asymmetric organic/inorganic composite membrane
US-2024068116-A1 · Feb 29, 2024 · US
Ion exchange membranes, electrochemical systems, and methods
US-10161050-B2 · Dec 25, 2018 · US
Graphene oxide and method of production thereof
US-2018362349-A1 · Dec 20, 2018 · US
Electrochemical flow-cell for hydrogen production and nicotinamide dependent target reduction, and related methods and systems
US-10151037-B2 · Dec 11, 2018 · US
Multi-component bipolar plate for an electrochemical cell
US-10141585-B2 · Nov 27, 2018 · US
Electrochemical system for a fuel cell system with an embossed contacting plate
US-10090534-B2 · Oct 2, 2018 · US
Ultrathin graphene piece, apparatus for preparing ultrathin graphene pieces, method for preparing ultrathin graphene pieces, capacitor, and method of manufacturing capacitor
US-2018244526-A1 · Aug 30, 2018 · US
Differential pressure water electrolysis system
US-10053783-B2 · Aug 21, 2018 · US
Ion-conducting solid-state separator
US-9991486-B2 · Jun 5, 2018 · US
Cation exchange membrane and electrolyzer
US-2018142367-A1 · May 24, 2018 · US
Electrochemical reaction cell enhancing reduction reaction
US-2018138534-A1 · May 17, 2018 · US
Production method for a support type coating membrane using tape casting
US-9962918-B2 · May 8, 2018 · US
Gasket and electrolyser
US-9963795-B2 · May 8, 2018 · US
Electrode unit
US-9957625-B2 · May 1, 2018 · US
Process for producing ion exchange membrane for electrolysis, and ion exchange membrane for electrolysis
US-2018043344-A1 · Feb 15, 2018 · US
Pressure releasing method of high-pressure water electrolysis system and pressure releasing method in water electrolysis system
US-2017342579-A1 · Nov 30, 2017 · US
Ion exchange membrane for alkali chloride electrolysis, and alkali chloride electrolysis apparatus
US-2017313836-A1 · Nov 2, 2017 · US
Apparatus for producing organic hydride and method for producing organic hydride using same
US-2017314145-A1 · Nov 2, 2017 · US
Anion exchange polymers and anion exchange membranes incorporating same
US-2017252707-A1 · Sep 7, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25B13/02?
- CPC C25B13/02 is the Cooperative Patent Classification code for “characterised by shape or form.”
- How many patents are filed under CPC C25B13/02 (characterised by shape or form)?
- Our database includes 475 publications tagged with this CPC code.
- Is patent activity under CPC C25B13/02 growing?
- Publication counts under this code: 76 in 2024 vs 107 in 2025 (latest complete years).