Patterned catalyst layers in fuel cells
US-2021399315-A1 · Dec 23, 2021 · US
Non-porous and characterised by the material
Non-porous and characterised by the material · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M8/0204 |
| Official title | Non-porous and characterised by the material |
| Display label | Non-porous and characterised by the material |
| Total patents | 108 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 6 |
| 2017 | 12 |
| 2018 | 7 |
| 2019 | 6 |
| 2020 | 11 |
| 2021 | 16 |
| 2022 | 10 |
| 2023 | 15 |
| 2024 | 6 |
| 2025 | 10 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrically-conductive member and method of manufacturing the same
US-11189846-B2 · Nov 30, 2021 · US
Bipolar plate with improved flow distribution for a fuel cell
US-11189847-B2 · Nov 30, 2021 · US
Fuel cell units having angled offset flow channels
US-2021359323-A1 · Nov 18, 2021 · US
Gas diffusion layer, membrane electrode assembly, and fuel battery
US-2021313652-A1 · Oct 7, 2021 · US
Fuel cell separator
US-11114676-B2 · Sep 7, 2021 · US
Fuel cell units having angled offset flow channels
US-11101480-B2 · Aug 24, 2021 · US
Methods and system for manufacturing a redox flow battery system by roll-to-roll processing
US-2021242483-A1 · Aug 5, 2021 · US
Electrochemical Element Stack, Electrochemical Element, Electrochemical Module, Electrochemical Device, and Energy System
US-2021111415-A1 · Apr 15, 2021 · US
Fuel cell stack, terminal structure for fuel cell stack, and method of producing terminal structure for fuel cell stack
US-2021083312-A1 · Mar 18, 2021 · US
Fuel cell system
US-2021036337-A1 · Feb 4, 2021 · US
Conductive, anti-corrosive material
US-2020411885-A1 · Dec 31, 2020 · US
Method of applying a flow field plate coating
US-2020378004-A1 · Dec 3, 2020 · US
Fuel cell
US-2020381759-A1 · Dec 3, 2020 · US
Bipolar plate, fuel cell, and motor vehicle
US-2020350601-A1 · Nov 5, 2020 · US
Bonding Method
US-2020346432-A1 · Nov 5, 2020 · US
Bipolar plate with improved flow distribution for a fuel cell
US-2020313202-A1 · Oct 1, 2020 · US
Fuel cell units having angled offset flow channels
US-2020212470-A1 · Jul 2, 2020 · US
Electrically-conductive member and method of manufacturing the same
US-2020127302-A1 · Apr 23, 2020 · US
Fuel cell
US-10573904-B2 · Feb 25, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M8/0204?
- CPC H01M8/0204 is the Cooperative Patent Classification code for “Non-porous and characterised by the material.”
- How many patents are filed under CPC H01M8/0204 (Non-porous and characterised by the material)?
- Our database includes 108 publications tagged with this CPC code.
- Is patent activity under CPC H01M8/0204 growing?
- Publication counts under this code: 6 in 2024 vs 10 in 2025 (latest complete years).