Heating device with condensing counter-flow heat exchanger and method of operating the same
US-9851109-B2 · Dec 26, 2017 · US
using an air-to-air heat exchanger (F24F12/002 takes precedence)
using an air-to-air heat exchanger (F24F12/002 takes precedence) · 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 | F24F12/006 |
| Official title | {using an air-to-air heat exchanger (F24F12/002 takes precedence)} |
| Display label | using an air-to-air heat exchanger (F24F12/002 takes precedence) |
| Total patents | 438 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 25 |
| 2016 | 25 |
| 2017 | 28 |
| 2018 | 27 |
| 2019 | 48 |
| 2020 | 33 |
| 2021 | 33 |
| 2022 | 43 |
| 2023 | 59 |
| 2024 | 47 |
| 2025 | 59 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat exchanger and ventilator having the same
US-9816725-B2 · Nov 14, 2017 · US
Air conditioning system utilizing heat recovery ventilation for fresh air supply and climate control
US-9796239-B2 · Oct 24, 2017 · US
Heat-exchange ventilation device
US-2017219237-A1 · Aug 3, 2017 · US
Ventilation device
US-2017159964-A1 · Jun 8, 2017 · US
Refrigeration and air-conditioning apparatus and humidity control device
US-9651282-B2 · May 16, 2017 · US
Ventilation device
US-2017097165-A1 · Apr 6, 2017 · US
Air-conditioning apparatus and air-conditioning system
US-2017051941-A1 · Feb 23, 2017 · US
Active Regenerative Heating and Cooling
US-2017045258-A1 · Feb 16, 2017 · US
Heat exchange assembly in an air to air heat exchanger
US-2017045257-A1 · Feb 16, 2017 · US
Transition Module for an Energy Recovery Ventilator Unit
US-2016377315-A1 · Dec 29, 2016 · US
Hvac system thermal recovery
US-2016348938-A1 · Dec 1, 2016 · US
Detecting and correcting enthalpy wheel failure modes
US-2016305723-A1 · Oct 20, 2016 · US
Dual-use ram-primary/regen hx
US-2016305683-A1 · Oct 20, 2016 · US
Supply and exhaust ventilation device
US-2016290675-A1 · Oct 6, 2016 · US
Transition module for an energy recovery ventilator unit
US-9441843-B2 · Sep 13, 2016 · US
Heat exchange element and heat exchanger
US-2016252269-A1 · Sep 1, 2016 · US
Energy recovery ventilation sulfonated block copolymer laminate membrane
US-9429366-B2 · Aug 30, 2016 · US
Air conditioner
US-2016231007-A1 · Aug 11, 2016 · US
Ventilation apparatus
US-9410716-B2 · Aug 9, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24F12/006?
- CPC F24F12/006 is the Cooperative Patent Classification code for “using an air-to-air heat exchanger (F24F12/002 takes precedence).”
- How many patents are filed under CPC F24F12/006 (using an air-to-air heat exchanger (F24F12/002 takes precedence))?
- Our database includes 438 publications tagged with this CPC code.
- Is patent activity under CPC F24F12/006 growing?
- Publication counts under this code: 47 in 2024 vs 59 in 2025 (latest complete years).