Fuel cell system
US-2018309143-A1 · Oct 25, 2018 · US
Arrangements for control of reactant parameters, e.g. pressure or concentration
Arrangements for control of reactant parameters, e.g. pressure or concentration · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M8/04082 |
| Official title | Arrangements for control of reactant parameters, e.g. pressure or concentration |
| Display label | Arrangements for control of reactant parameters, e.g. pressure or concentration |
| Total patents | 177 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 18 |
| 2017 | 22 |
| 2018 | 18 |
| 2019 | 24 |
| 2020 | 20 |
| 2021 | 18 |
| 2022 | 15 |
| 2023 | 14 |
| 2024 | 6 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel cell system and secondary battery diagnosis method
US-2018166720-A1 · Jun 14, 2018 · US
Thermal conditioning fluids for an underwater cryogenic storage vessel
US-9853301-B2 · Dec 26, 2017 · US
Fuel cell system and method of controlling the same
US-2017365868-A1 · Dec 21, 2017 · US
Hollow fiber membrane cartridge-type humidification module and method for manufacturing same
US-2017358808-A1 · Dec 14, 2017 · US
Fuel cell system and method for controlling fuel cell system
US-9843056-B2 · Dec 12, 2017 · US
Gas and condensed water discharge system for fuel cell system and control method thereof
US-2017346112-A1 · Nov 30, 2017 · US
Fuel cell system, fuel cell-mounted vehicle and method of controlling fuel system
US-9793562-B2 · Oct 17, 2017 · US
Method for controlling startup of fuel cell vehicle
US-2017294666-A1 · Oct 12, 2017 · US
Modular bioelectrochemical systems and methods
US-2017279147-A1 · Sep 28, 2017 · US
Gas and condensed water discharge system for fuel cell system and control method thereof
US-9748586-B2 · Aug 29, 2017 · US
Solid state hydrogen storage device
US-2017244124-A1 · Aug 24, 2017 · US
Fuel cell vehicle
US-2017187056-A1 · Jun 29, 2017 · US
Modular bioelectrochemical systems and methods
US-9685676-B2 · Jun 20, 2017 · US
Solid oxide fuel cell system
US-9666885-B2 · May 30, 2017 · US
Fuel cell
US-9666890-B2 · May 30, 2017 · US
Method for controlling fuel cell system
US-9647282-B2 · May 9, 2017 · US
Fuel cell vehicle
US-2017101031-A1 · Apr 13, 2017 · US
Downhole fuel cell with steam adsorption and pressure compensation
US-9593562-B2 · Mar 14, 2017 · US
Valve, fluidic apparatus, and fluid-supplying apparatus
US-9574674-B2 · Feb 21, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M8/04082?
- CPC H01M8/04082 is the Cooperative Patent Classification code for “Arrangements for control of reactant parameters, e.g. pressure or concentration.”
- How many patents are filed under CPC H01M8/04082 (Arrangements for control of reactant parameters, e.g. pressure or concentration)?
- Our database includes 177 publications tagged with this CPC code.
- Is patent activity under CPC H01M8/04082 growing?
- Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).