Method and apparatus for enhanced off-cycle defrost
US-2018209717-A1 · Jul 26, 2018 · US
with electronic control circuits
with electronic control circuits · 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 | F25D21/006 |
| Official title | {with electronic control circuits} |
| Display label | with electronic control circuits |
| Total patents | 299 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 24 |
| 2016 | 19 |
| 2017 | 14 |
| 2018 | 27 |
| 2019 | 35 |
| 2020 | 32 |
| 2021 | 33 |
| 2022 | 30 |
| 2023 | 26 |
| 2024 | 24 |
| 2025 | 29 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air-conditioning apparatus providing defrosting without suspending a heating operation
US-10001317-B2 · Jun 19, 2018 · US
Demand side management enabling of electro mechanically controlled refrigerators and refrigeration systems
US-9976792-B2 · May 22, 2018 · US
Heat pump system for vehicle and method of controlling the same
US-9829237-B2 · Nov 28, 2017 · US
Defrost control using fan data
US-9803911-B2 · Oct 31, 2017 · US
A cooling device comprising a thawing compartment and the control method thereof
US-2017299251-A1 · Oct 19, 2017 · US
Freezing and Refrigerating Device and Defrosting Control Method thereof
US-2017241696-A1 · Aug 24, 2017 · US
Using weather data in heat pump defrost control
US-9719715-B2 · Aug 1, 2017 · US
Sealed System and a Method For Defrosting an Evaporator
US-2017211871-A1 · Jul 27, 2017 · US
Air conditioner for vehicle
US-9707930-B2 · Jul 18, 2017 · US
Method for Operating a Fan Within a Refrigerator Appliance
US-2017191733-A1 · Jul 6, 2017 · US
Defrost Control Using Fan Data
US-2017191732-A1 · Jul 6, 2017 · US
Cooling apparatus and control method thereof
US-9671150-B2 · Jun 6, 2017 · US
Refrigerator and method for operating the same
US-9638455-B2 · May 2, 2017 · US
Defrost control using fan data
US-9605889-B2 · Mar 28, 2017 · US
Method for controlling the defrost of an evaporator in a refrigeration appliance
US-9551523-B2 · Jan 24, 2017 · US
Refrigerator and control method thereof
US-9534821-B2 · Jan 3, 2017 · US
Refrigerator and method of controlling the same
US-2016370095-A1 · Dec 22, 2016 · US
Heat pump system and operation method therefor
US-2016305702-A1 · Oct 20, 2016 · US
Defrost Control Using Fan Data
US-2016258668-A1 · Sep 8, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25D21/006?
- CPC F25D21/006 is the Cooperative Patent Classification code for “with electronic control circuits.”
- How many patents are filed under CPC F25D21/006 (with electronic control circuits)?
- Our database includes 299 publications tagged with this CPC code.
- Is patent activity under CPC F25D21/006 growing?
- Publication counts under this code: 24 in 2024 vs 29 in 2025 (latest complete years).