Cooling system and method for use with a fuel cell
US-2017365865-A1 · Dec 21, 2017 · US
Humidity; Water content
Humidity; Water content · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M8/04828 |
| Official title | Humidity; Water content |
| Display label | Humidity; Water content |
| Total patents | 356 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 34 |
| 2017 | 39 |
| 2018 | 29 |
| 2019 | 55 |
| 2020 | 32 |
| 2021 | 31 |
| 2022 | 30 |
| 2023 | 33 |
| 2024 | 21 |
| 2025 | 24 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for recovering output of fuel cell
US-9831515-B2 · Nov 28, 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
Power supply system, apparatus, and control method
US-2017244336-A1 · Aug 24, 2017 · US
Power supply system, apparatus, and control method
US-2017244337-A1 · Aug 24, 2017 · US
Fuel cell system
US-2016380294-A1 · Dec 29, 2016 · US
Fuel cell system
US-2016380289-A1 · Dec 29, 2016 · US
Fuel cell system
US-2016380283-A1 · Dec 29, 2016 · US
Apparatus and method for controling air supply into fuel cell stack
US-2016359181-A1 · Dec 8, 2016 · US
Fuel cell system and control method for same
US-9509001-B2 · Nov 29, 2016 · US
Cathode humidification unit adapting degradation factor
US-9502726-B2 · Nov 22, 2016 · US
Fuel cell water drain valve control with vehicle tilt compensation
US-9472818-B2 · Oct 18, 2016 · US
Controller for estimating relative humidity and condensed water, and method for controlling condensed water drain using the same
US-2016301091-A1 · Oct 13, 2016 · US
Operation control method and system of fuel cell
US-2016293983-A1 · Oct 6, 2016 · US
Humidifier for fuel cell and fuel cell system comprising the same
US-9461318-B2 · Oct 4, 2016 · US
Carbon dioxide separator, fuel cell system including same, and method of operating the fuel cell system
US-2016248111-A1 · Aug 25, 2016 · US
Fuel cell system and method of operating fuel cell system
US-9425473-B2 · Aug 23, 2016 · US
Motor Vehicle, Method for Controlling a Fill Level of a Water Tank in a Motor Vehicle that Comprises a Fuel Cell System, and Use of Signals and/or Data of a Motor Vehicle State and/or of a Motor Vehicle Environment
US-2016240869-A1 · Aug 18, 2016 · US
Fuel cell system and method of controlling operation of fuel cell
US-2016190613-A1 · Jun 30, 2016 · US
Fuel cell system
US-2016181637-A1 · Jun 23, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M8/04828?
- CPC H01M8/04828 is the Cooperative Patent Classification code for “Humidity; Water content.”
- How many patents are filed under CPC H01M8/04828 (Humidity; Water content)?
- Our database includes 356 publications tagged with this CPC code.
- Is patent activity under CPC H01M8/04828 growing?
- Publication counts under this code: 21 in 2024 vs 24 in 2025 (latest complete years).