Heat exchanger unit
US-2025277602-A1 · Sep 4, 2025 · US
with integrated flue gas condenser
with integrated flue gas condenser · 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 | F24H1/445 |
| Official title | {with integrated flue gas condenser} |
| Display label | with integrated flue gas condenser |
| Total patents | 52 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2018 | 12 |
| 2019 | 8 |
| 2020 | 8 |
| 2021 | 4 |
| 2022 | 6 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat exchanger unit
US-12331959-B2 · Jun 17, 2025 · US
Water heater
US-2025155162-A1 · May 15, 2025 · US
Heat exchanger unit and method for manufacturing the same
US-12130052-B2 · Oct 29, 2024 · US
Heat exchanger unit and method for manufacturing the same
US-2024344738-A1 · Oct 17, 2024 · US
Heat exchanger unit
US-11879666-B2 · Jan 23, 2024 · US
Heat exchanger unit
US-11835261-B2 · Dec 5, 2023 · US
Heat exchanger unit
US-11835262-B2 · Dec 5, 2023 · US
Heat exchanger unit and condensing boiler using the same
US-2023152007-A1 · May 18, 2023 · US
Tankless water heater having integrated scale control module
US-11624512-B2 · Apr 11, 2023 · US
Heat exchanger unit and condensing boiler using the same
US-11585572-B2 · Feb 21, 2023 · US
Heat exchanger unit and condensing boiler using the same
US-2022221192-A1 · Jul 14, 2022 · US
Heat exchanger unit and condensing boiler using the same
US-2022221191-A1 · Jul 14, 2022 · US
Heat exchanger unit and condensing boiler using the same
US-2022221190-A1 · Jul 14, 2022 · US
Method and arrangement
US-2022154974-A1 · May 19, 2022 · US
Heat exchanger and hot water apparatus
US-11293702-B2 · Apr 5, 2022 · US
Tankless water heater having integrated scale control module
US-2022034522-A1 · Feb 3, 2022 · US
Heat source device
US-11118811-B2 · Sep 14, 2021 · US
Heat exchanger unit and condensing boiler using the same
US-2021247103-A1 · Aug 12, 2021 · US
Heat exchanger unit and method for manufacturing the same
US-2021199340-A1 · Jul 1, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24H1/445?
- CPC F24H1/445 is the Cooperative Patent Classification code for “with integrated flue gas condenser.”
- How many patents are filed under CPC F24H1/445 (with integrated flue gas condenser)?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC F24H1/445 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).