Heating device and manufacturing method of can body
US-2026054308-A1 · Feb 26, 2026 · US
Air heaters
Air 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 | F24H3/00 |
| Official title | Air heaters |
| Display label | Air heaters |
| Total patents | 26 |
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 | 2 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and Method for Heating and Cooling
US-2025067454-A1 · Feb 27, 2025 · US
System and method for heating and cooling
US-12188668-B2 · Jan 7, 2025 · US
Combustion heater and air conditioning system
US-2024318840-A1 · Sep 26, 2024 · US
Heat exchanger transfer tubes
US-12072153-B2 · Aug 27, 2024 · US
Combustion heater and air conditioning system
US-12038197-B2 · Jul 16, 2024 · US
System and method for heating and cooling
US-2023332789-A1 · Oct 19, 2023 · US
System and method for heating and cooling
US-11719453-B2 · Aug 8, 2023 · US
Heat exchanger transfer tubes
US-2023038602-A1 · Feb 9, 2023 · US
Heat exchanger transfer tubes
US-11480392-B2 · Oct 25, 2022 · US
Method and system for determining hot water use by using temperature gap
US-11441788-B2 · Sep 13, 2022 · US
Combustion heater and air conditioning system
US-2022065469-A1 · Mar 3, 2022 · US
System and Method for Heating and Cooling
US-2021180818-A1 · Jun 17, 2021 · US
Heat generator
US-2021144813-A1 · May 13, 2021 · US
Gas stove table
US-D917681-S · Apr 27, 2021 · US
System and method for heating and cooling
US-10948208-B2 · Mar 16, 2021 · US
Heat Exchanger Transfer Tubes
US-2021018270-A1 · Jan 21, 2021 · US
System and Method for Heating and Cooling
US-2020386433-A1 · Dec 10, 2020 · US
System and method for heating and cooling
US-2019226707-A1 · Jul 25, 2019 · US
Furnace and method for heating air
US-10247444-B2 · Apr 2, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24H3/00?
- CPC F24H3/00 is the Cooperative Patent Classification code for “Air heaters.”
- How many patents are filed under CPC F24H3/00 (Air heaters)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC F24H3/00 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).