Fuel cell
US-2015380744-A1 · Dec 31, 2015 · US
with both reactants being gaseous or vaporised
with both reactants being gaseous or vaporised · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M8/2457 |
| Official title | with both reactants being gaseous or vaporised |
| Display label | with both reactants being gaseous or vaporised |
| Total patents | 797 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 101 |
| 2016 | 102 |
| 2017 | 75 |
| 2018 | 74 |
| 2019 | 79 |
| 2020 | 67 |
| 2021 | 80 |
| 2022 | 63 |
| 2023 | 67 |
| 2024 | 35 |
| 2025 | 44 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for stopping fuel cell system and fuel cell system
US-2015380753-A1 · Dec 31, 2015 · US
Separator for fuel cell and fuel cell comprising same
US-9209465-B2 · Dec 8, 2015 · US
Fuel cell, fuel cell stack, and method of producing the fuel cell stack
US-9203103-B2 · Dec 1, 2015 · US
Fuel cell system with interconnect
US-2015340712-A1 · Nov 26, 2015 · US
Manufacturing method of fuel cell module and manufacturing method of fuel cell
US-9178242-B2 · Nov 3, 2015 · US
Fuel cell having perforated flow field
US-9178230-B2 · Nov 3, 2015 · US
Fuel cell system having improved fuel gas circulation
US-9172102-B2 · Oct 27, 2015 · US
Separator and fuel cell with the same
US-2015303492-A1 · Oct 22, 2015 · US
Gasket for fuel cell
US-2015303495-A1 · Oct 22, 2015 · US
Fuel cell
US-2015303494-A1 · Oct 22, 2015 · US
Fuel cell
US-9166244-B2 · Oct 20, 2015 · US
Seal member for fuel cell and fuel cell seal body using same
US-2015288004-A1 · Oct 8, 2015 · US
Fuel cell stack
US-2015280269-A1 · Oct 1, 2015 · US
Fuel cell system with interconnect
US-9147888-B2 · Sep 29, 2015 · US
Fuel cell with embedded flow field
US-9147890-B2 · Sep 29, 2015 · US
Fuel cell vehicle
US-2015270562-A1 · Sep 24, 2015 · US
Air compressor and fuel cell system having the same
US-2015270566-A1 · Sep 24, 2015 · US
Solid oxide fuel cell device and method for manufacturing same
US-2015255805-A1 · Sep 10, 2015 · US
Fuel cell stack
US-9123946-B2 · Sep 1, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M8/2457?
- CPC H01M8/2457 is the Cooperative Patent Classification code for “with both reactants being gaseous or vaporised.”
- How many patents are filed under CPC H01M8/2457 (with both reactants being gaseous or vaporised)?
- Our database includes 797 publications tagged with this CPC code.
- Is patent activity under CPC H01M8/2457 growing?
- Publication counts under this code: 35 in 2024 vs 44 in 2025 (latest complete years).