Thermal energy storage concept with high energy storage density
US-12429291-B2 · Sep 30, 2025 · US
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with conventional supplementary heat source
with conventional supplementary heat source · 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 | F24D11/004 |
| Official title | {with conventional supplementary heat source} |
| Display label | with conventional supplementary heat source |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Retrofit hot water heat pump
US-12235019-B2 · Feb 25, 2025 · US
Cogeneration system
US-2024413358-A1 · Dec 12, 2024 · US
Heat transmitting system for providing a heat medium with a set temperature and heat transmitting method
US-11815270-B2 · Nov 14, 2023 · US
Retrofit hot water heat pump
US-2023136851-A1 · May 4, 2023 · US
Thermal Energy Storage Concept with High Energy Storage Density
US-2023056787-A1 · Feb 23, 2023 · US
Heat transmitting system for providing a heat medium with a set temperature and heat transmitting method
US-2021088228-A1 · Mar 25, 2021 · US
Heat source system managing device, heat source system managing method, and program
US-10808947-B2 · Oct 20, 2020 · US
Fuel cell system
US-2018205097-A1 · Jul 19, 2018 · US
Heat source system managing device, heat source system managing method, and program
US-2017314789-A1 · Nov 2, 2017 · US
Solar thermal system
US-9400122-B2 · Jul 26, 2016 · US
Boiler system using fuel cell
US-2015323199-A1 · Nov 12, 2015 · US
Structure for controlling temperature of hot-water supply from waste heat recovery system using three-way valve or mixing valve, and structure for controlling temperature of hot-water supply from waste heat recovery system using heat exchanger in hot-water tank
US-2015204577-A1 · Jul 23, 2015 · US
Domestic combined heat and power system
US-9027516-B2 · May 12, 2015 · US