Warm-up apparatus for fuel cell for vehicle
US-2017365901-A1 · Dec 21, 2017 · US
Combination of fuel cell with other electric generators
Combination of fuel cell with other electric generators · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M2250/402 |
| Official title | Combination of fuel cell with other electric generators |
| Display label | Combination of fuel cell with other electric generators |
| Total patents | 270 |
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 | 24 |
| 2016 | 18 |
| 2017 | 28 |
| 2018 | 28 |
| 2019 | 21 |
| 2020 | 25 |
| 2021 | 10 |
| 2022 | 19 |
| 2023 | 19 |
| 2024 | 21 |
| 2025 | 44 |
| 2026 | 13 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel cell system
US-2017355278-A1 · Dec 14, 2017 · US
Hydrogen recuperation for vehicles
US-2017320393-A1 · Nov 9, 2017 · US
Fuel cell system, fuel cell vehicle, and method of controlling fuel cell system
US-2017305296-A1 · Oct 26, 2017 · US
Fuel cell system, fuel cell vehicle, and method of controlling fuel cell system
US-9776526-B2 · Oct 3, 2017 · US
Power generation system
US-9777629-B2 · Oct 3, 2017 · US
Hydrogen oxidation and generation over carbon films
US-9768460-B2 · Sep 19, 2017 · US
Power generation system
US-2017260902-A1 · Sep 14, 2017 · US
System and method for maintaining and establishing operational readiness in a fuel cell backup system of a nuclear reactor system
US-9748006-B2 · Aug 29, 2017 · US
Flight path calculating and searching method of a unmanned aerial vehicle with regenerative fuel cells and solar cells for high altitude long endurance, and a searching apparatus thereof
US-2017236427-A1 · Aug 17, 2017 · US
Fuel cell assembly
US-2017222291-A1 · Aug 3, 2017 · US
Systems and methods for uav fuel cell
US-2017200961-A1 · Jul 13, 2017 · US
Method for the Predictive Operation of a Fuel Cell or a High-Voltage Accumulator
US-2017179512-A1 · Jun 22, 2017 · US
Solid oxide fuel cell system
US-9666885-B2 · May 30, 2017 · US
Power system for a telecommunications network
US-9627729-B2 · Apr 18, 2017 · US
Solid oxide fuel cell system
US-9570766-B2 · Feb 14, 2017 · US
Power generation and CO2 capture with turbines in series
US-9556753-B2 · Jan 31, 2017 · US
Fuel cell system
US-9537193-B2 · Jan 3, 2017 · US
Vehicle
US-2016380287-A1 · Dec 29, 2016 · US
Systems for hybrid fuel cell power generation
US-2016365590-A1 · Dec 15, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M2250/402?
- CPC H01M2250/402 is the Cooperative Patent Classification code for “Combination of fuel cell with other electric generators.”
- How many patents are filed under CPC H01M2250/402 (Combination of fuel cell with other electric generators)?
- Our database includes 270 publications tagged with this CPC code.
- Is patent activity under CPC H01M2250/402 growing?
- Publication counts under this code: 21 in 2024 vs 44 in 2025 (latest complete years).