Electrochemical cell system
US-12080926-B2 · Sep 3, 2024 · US
of cathode exhausts
of cathode exhausts · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M8/04522 |
| Official title | {of cathode exhausts} |
| Display label | of cathode exhausts |
| Total patents | 71 |
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 | 2 |
| 2016 | 6 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 12 |
| 2022 | 6 |
| 2023 | 10 |
| 2024 | 7 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Controlling pemfc stack flooding
US-2023387433-A1 · Nov 30, 2023 · US
Activation method for fuel cell and device therefor
US-2023307678-A1 · Sep 28, 2023 · US
Fuel cell system
US-11764377-B2 · Sep 19, 2023 · US
Fuel cell power system for an unmanned surface vehicle
US-11742502-B2 · Aug 29, 2023 · US
Water discharge optimization for fuel cell vehicles
US-11695135-B2 · Jul 4, 2023 · US
Method for humidifying a reactant, and fuel cell system for carrying out the method
US-11695134-B2 · Jul 4, 2023 · US
Controlling purge operation for fuel cell assembly
US-11641022-B2 · May 2, 2023 · US
Systems and methods for controlling and monitoring a fuel cell stack using cathode exhaust humidity
US-2023104149-A1 · Apr 6, 2023 · US
Method of starting operation of fuel cell system at low temperature, and the fuel cell system
US-11563223-B2 · Jan 24, 2023 · US
Fuel cell system
US-2023012347-A1 · Jan 12, 2023 · US
Water discharge optimization for fuel cell vehicles
US-2022293976-A1 · Sep 15, 2022 · US
Determination device and method for calculating a moisture value in a fuel cell system
US-2022255096-A1 · Aug 11, 2022 · US
Method for increasing the safety and/or the reliability of the operation of a fuel cell stack
US-11387471-B2 · Jul 12, 2022 · US
Controlling purge operation for fuel cell assembly
US-2022216490-A1 · Jul 7, 2022 · US
Methods and systems for controlling water imbalance in an electrochemical cell
US-2022102743-A1 · Mar 31, 2022 · US
Fuel cell module arrangement with leak recovery and methods of use
US-11289725-B2 · Mar 29, 2022 · US
Determining the mass flow of an exhaust gas constituent of a fuel cell
US-2021399320-A1 · Dec 23, 2021 · US
Fuel cell exhaust device
US-11201338-B2 · Dec 14, 2021 · US
Metal air battery and method of operating the same
US-11127997-B2 · Sep 21, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M8/04522?
- CPC H01M8/04522 is the Cooperative Patent Classification code for “of cathode exhausts.”
- How many patents are filed under CPC H01M8/04522 (of cathode exhausts)?
- Our database includes 71 publications tagged with this CPC code.
- Is patent activity under CPC H01M8/04522 growing?
- Publication counts under this code: 7 in 2024 vs 3 in 2025 (latest complete years).