Hot-water supply unit and hot-water supply system
US-10876743-B2 · Dec 29, 2020 · US
having more than one heat source (using heat pumps, in water central heating systems F24D3/18; in air central heating systems F24D5/12; in systems using heat storage masses F24D11/02)
having more than one heat source (using heat pumps, in water central heating systems F24D3/18; in air central heating systems F24D5/12; in systems using heat storage masses F24D11/02) · 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 | F24D12/02 |
| Official title | having more than one heat source (using heat pumps, in water central heating systems F24D3/18; in air central heating systems F24D5/12; in systems using heat storage masses F24D11/02) |
| Display label | having more than one heat source (using heat pumps, in water central heating systems F24D3/18; in air central heating systems F24D5/12; in systems using heat storage masses F24D11/02) |
| Total patents | 93 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 10 |
| 2017 | 5 |
| 2018 | 15 |
| 2019 | 6 |
| 2020 | 7 |
| 2021 | 9 |
| 2022 | 4 |
| 2023 | 8 |
| 2024 | 3 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel-fired appliance with thermoelectric-powered secondary electric heating
US-10830457-B2 · Nov 10, 2020 · US
Heat pump boiler
US-2020124293-A1 · Apr 23, 2020 · US
Hybrid heating system
US-2020124357-A1 · Apr 23, 2020 · US
Common venting system for water heaters and method of controlling the same
US-10584874-B2 · Mar 10, 2020 · US
Heat supply system
US-10544945-B2 · Jan 28, 2020 · US
Communication adapter for collecting information about a system being monitored
US-10469308-B2 · Nov 5, 2019 · US
Air conditioning system
US-10386078-B2 · Aug 20, 2019 · US
Stratifier for tank-type water heater
US-2019137189-A1 · May 9, 2019 · US
Water heating system
US-10240818-B2 · Mar 26, 2019 · US
Hot-water supply unit and hot-water supply system
US-2019086102-A1 · Mar 21, 2019 · US
Gas fired modular blower control and associated methodology
US-10215425-B2 · Feb 26, 2019 · US
Water heating system including multi-function heat source apparatus
US-2018372343-A1 · Dec 27, 2018 · US
Modeling Method of Combined Heat and Power Optimal Dispatching Model
US-2018356105-A1 · Dec 13, 2018 · US
Combined hot water and air heating and conditioning system including heat pump
US-10132507-B2 · Nov 20, 2018 · US
Communication adapter
US-2018287857-A1 · Oct 4, 2018 · US
HVAC apparatus, method, and system
US-10072856-B1 · Sep 11, 2018 · US
Apparatus and method for hybrid water heating and air cooling and control thereof
US-10041702-B2 · Aug 7, 2018 · US
Method for manufacturing shaped product with maintained isotrophy
US-10006677-B2 · Jun 26, 2018 · US
Fuel-fired appliance with thermoelectric-powered secondary electric heating
US-2018135869-A1 · May 17, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24D12/02?
- CPC F24D12/02 is the Cooperative Patent Classification code for “having more than one heat source (using heat pumps, in water central heating systems F24D3/18; in air central heating systems F24D5/12; in systems using heat storage masses F24D11/02).”
- How many patents are filed under CPC F24D12/02 (having more than one heat source (using heat pumps, in water central heating systems F24D3/18; in air central heating systems F24D5/12; in systems using heat storage masses F24D11/02))?
- Our database includes 93 publications tagged with this CPC code.
- Is patent activity under CPC F24D12/02 growing?
- Publication counts under this code: 3 in 2024 vs 7 in 2025 (latest complete years).