Water heater and control method therefor
US-12276441-B2 · Apr 15, 2025 · US
with tubes filled with heat transfer fluid
with tubes filled with heat transfer fluid · 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 | F24H1/208 |
| Official title | {with tubes filled with heat transfer fluid} |
| Display label | with tubes filled with heat transfer fluid |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Synergistic system
US-2025088003-A1 · Mar 13, 2025 · US
Water heater, and scale detection system and method
US-11920923-B2 · Mar 5, 2024 · US
Waste-heat recovery system in oil-cooled gas compressor
US-11821657-B2 · Nov 21, 2023 · US
Gas furnace to produce heated air and optionally hot water via a bypass pipe
US-11499750-B2 · Nov 15, 2022 · US
Waste-Heat Recovery System in Oil-Cooled Gas Compressor
US-2022170666-A1 · Jun 2, 2022 · US
Waste-heat recovery system in oil-cooled gas compressor
US-11300322-B2 · Apr 12, 2022 · US
Synergistic system
US-2022074622-A1 · Mar 10, 2022 · US
Water heater and control method therefor
US-2021239328-A1 · Aug 5, 2021 · US
Gas furnace
US-2021033305-A1 · Feb 4, 2021 · US
Condensation reduction in water heaters
US-10895404-B2 · Jan 19, 2021 · US
Refrigeration cycle apparatus
US-10753645-B2 · Aug 25, 2020 · US
Waste-Heat Recovery System in Oil-Cooled Gas Compressor
US-2020158377-A1 · May 21, 2020 · US
Heat exchanger
US-10627133-B2 · Apr 21, 2020 · US
Waste-heat recovery system in oil-cooled gas compressor
US-10578339-B2 · Mar 3, 2020 · US
Condensation Reduction in Water Heaters
US-2019285315-A1 · Sep 19, 2019 · US
Waste-Heat Recovery System in Oil-Cooled Gas Compressor
US-2019113251-A9 · Apr 18, 2019 · US
Refrigeration cycle apparatus
US-2019011148-A1 · Jan 10, 2019 · US
Heat exchanger
US-2019011150-A1 · Jan 10, 2019 · US
Waste-Heat Recovery System in Oil-Cooled Gas Compressor
US-2018320927-A1 · Nov 8, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24H1/208?
- CPC F24H1/208 is the Cooperative Patent Classification code for “with tubes filled with heat transfer fluid.”
- How many patents are filed under CPC F24H1/208 (with tubes filled with heat transfer fluid)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC F24H1/208 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).