Air conditioning system
US-12345434-B2 · Jul 1, 2025 · US
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Central heating systems employing heat-transfer fluids not covered by groups F24D1/00 - F24D5/00, e.g. oil, salt or gas (district heating systems F24D10/00; central heating systems using heat accumulated in storage masses F24D11/00)
Central heating systems employing heat-transfer fluids not covered by groups F24D1/00 - F24D5/00, e.g. oil, salt or gas (district heating systems F24D10/00; central heating systems using heat accumulated in storage masses F24D11/00) · 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 | F24D7/00 |
| Official title | Central heating systems employing heat-transfer fluids not covered by groups F24D1/00 - F24D5/00, e.g. oil, salt or gas (district heating systems F24D10/00; central heating systems using heat accumulated in storage masses F24D11/00) |
| Display label | Central heating systems employing heat-transfer fluids not covered by groups F24D1/00 - F24D5/00, e.g. oil, salt or gas (district heating systems F24D10/00; central heating systems using heat accumulated in storage masses F24D11/00) |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2018 | 4 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 4 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat exchanger beds and related systems and methods
US-2025113922-A1 · Apr 10, 2025 · US
Condensate drain system for a furnace
US-12025347-B2 · Jul 2, 2024 · US
System and method for laser ignition of fuel in a coal-fired burner
US-11859817-B2 · Jan 2, 2024 · US
Methods and systems for thermal energy storage and their use in buildings applications
US-11480395-B2 · Oct 25, 2022 · US
System and method for laser ignition of fuel in a coal-fired burner
US-2022178539-A1 · Jun 9, 2022 · US
Condensate drain system for a furnace
US-2022163236-A1 · May 26, 2022 · US
Methods and systems for thermal energy storage and their use in buildings applications
US-2022034598-A1 · Feb 3, 2022 · US
Condensate drain system for a furnace
US-11209187-B2 · Dec 28, 2021 · US
Air conditioning system
US-2021302051-A1 · Sep 30, 2021 · US
Heating system including a refrigerant boiler
US-11029040-B2 · Jun 8, 2021 · US
Charging energy recapture assembly and method
US-10913369-B2 · Feb 9, 2021 · US
Condensate drain system for a furnace
US-2020271354-A1 · Aug 27, 2020 · US
Charging energy recapture assembly and method
US-2018229616-A1 · Aug 16, 2018 · US
Heating system including a refrigerant boiler
US-2018209666-A1 · Jul 26, 2018 · US
Combined hot water and space heating and conditioning system including heat pump
US-10012393-B2 · Jul 3, 2018 · US
Combined fuel cell and boiler system
US-9917317-B2 · Mar 13, 2018 · US
Combined fuel cell and boiler system
US-2015104725-A1 · Apr 16, 2015 · US
Method for pooling thermal energy, and heat exchange loop system between industrial and tertiary sites
US-2015060016-A1 · Mar 5, 2015 · US