Integrated anode for a heat exchanger
US-12553644-B2 · Feb 17, 2026 · US
for water heaters
for water heaters · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F24H9/455 |
| Official title | {for water heaters} |
| Display label | for water heaters |
| Total patents | 48 |
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 | 1 |
| 2016 | 7 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and devices for corrosion prevention and methods thereto
US-12319597-B2 · Jun 3, 2025 · US
Water heater operation monitoring and notification
US-12203684-B2 · Jan 21, 2025 · US
Integrated Anode For A Heat Exchanger
US-2024418408-A1 · Dec 19, 2024 · US
Tank and water heater
US-2024393015-A1 · Nov 28, 2024 · US
Ce-containing magnesium alloy sacrificial anode and preparation method and use thereof
US-2024295010-A1 · Sep 5, 2024 · US
Anode assembly for a heat exchanger
US-D1030985-S · Jun 11, 2024 · US
Water Heater Operation Monitoring and Notification
US-2023258368-A1 · Aug 17, 2023 · US
Cathodic corrosion and dry fire protection apparatus and methods for electric water heaters
US-11698209-B2 · Jul 11, 2023 · US
Water heater operation monitoring and notification
US-11674717-B2 · Jun 13, 2023 · US
Integrated Anode For A Heat Exchanger
US-2023084544-A1 · Mar 16, 2023 · US
Integrated anode for a heat exchanger
US-11499748-B2 · Nov 15, 2022 · US
Corrosion prevention for heat exchanger devices and pool heaters
US-2022316823-A1 · Oct 6, 2022 · US
Water heater operation monitoring and notification
US-2022260281-A1 · Aug 18, 2022 · US
Systems and methods for monitoring cathodic protection degradation
US-11359293-B2 · Jun 14, 2022 · US
Systems and methods for monitoring integrated passive anodes
US-2021340679-A1 · Nov 4, 2021 · US
Systems and devices for corrosion prevention and methods thereto
US-2021276890-A1 · Sep 9, 2021 · US
Systems and methods for monitoring cathodic protection degradation
US-2021269926-A1 · Sep 2, 2021 · US
Method and system for monitoring powered anode drive level
US-11047595-B2 · Jun 29, 2021 · US
Integrated Anode For A Heat Exchanger
US-2021108827-A1 · Apr 15, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24H9/455?
- CPC F24H9/455 is the Cooperative Patent Classification code for “for water heaters.”
- How many patents are filed under CPC F24H9/455 (for water heaters)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC F24H9/455 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).