Fuel cell system
US-10511040-B2 · Dec 17, 2019 · US
of auxiliary devices, e.g. batteries, capacitors
of auxiliary devices, e.g. batteries, capacitors · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M8/04888 |
| Official title | {of auxiliary devices, e.g. batteries, capacitors} |
| Display label | of auxiliary devices, e.g. batteries, capacitors |
| Total patents | 125 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 11 |
| 2017 | 11 |
| 2018 | 14 |
| 2019 | 19 |
| 2020 | 12 |
| 2021 | 7 |
| 2022 | 10 |
| 2023 | 16 |
| 2024 | 10 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel cell system and method for controlling the fuel cell system
US-10511227-B2 · Dec 17, 2019 · US
Fuel cell activation apparatus, fuel cell activation method, and fuel cell activation system
US-10497953-B2 · Dec 3, 2019 · US
Fuel cell system and control method of the same
US-10497995-B2 · Dec 3, 2019 · US
Voltage control device for fuel-cell vehicle
US-10486543-B2 · Nov 26, 2019 · US
Fuel cell unit for use in aggregating multiple fuel cells in parallel
US-10483573-B2 · Nov 19, 2019 · US
Vehicle system
US-2019337403-A1 · Nov 7, 2019 · US
Power conditioning system and control method therefor
US-10464438-B2 · Nov 5, 2019 · US
Fuel cell system and method for controlling the fuel cell system
US-2019273437-A1 · Sep 5, 2019 · US
Fuel cell system with variable auxiliary bus voltage and method of operating thereof
US-10367215-B2 · Jul 30, 2019 · US
Apparatus and method to apply voltage to fuel cell stack from high voltage system for usage during diagnostic tests
US-10320213-B2 · Jun 11, 2019 · US
Cod control method and system for fuel cell
US-2019165398-A1 · May 30, 2019 · US
Fuel cell system and control method for fuel cell system
US-2019165439-A1 · May 30, 2019 · US
Fuel battery system and control method for fuel battery system
US-10305129-B2 · May 28, 2019 · US
Load following power generation and power storage using rep and pem technology
US-2019148753-A1 · May 16, 2019 · US
Fuel cell system
US-10291054-B2 · May 14, 2019 · US
Control method and system of fuel cell system
US-2019088960-A1 · Mar 21, 2019 · US
Fuel cell and associated heating system
US-2019044163-A1 · Feb 7, 2019 · US
Control method and system of fuel cell system
US-10158137-B2 · Dec 18, 2018 · US
Shut down system and control method of fuel cell vehicle
US-10147960-B2 · Dec 4, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M8/04888?
- CPC H01M8/04888 is the Cooperative Patent Classification code for “of auxiliary devices, e.g. batteries, capacitors.”
- How many patents are filed under CPC H01M8/04888 (of auxiliary devices, e.g. batteries, capacitors)?
- Our database includes 125 publications tagged with this CPC code.
- Is patent activity under CPC H01M8/04888 growing?
- Publication counts under this code: 10 in 2024 vs 7 in 2025 (latest complete years).