Fluid path insert for a cryogenic cooling system
US-10481222-B2 · Nov 19, 2019 · US
Defroster control
Defroster control · 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 | F25D21/002 |
| Official title | {Defroster control} |
| Display label | Defroster control |
| Total patents | 168 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 9 |
| 2017 | 16 |
| 2018 | 14 |
| 2019 | 20 |
| 2020 | 18 |
| 2021 | 22 |
| 2022 | 19 |
| 2023 | 14 |
| 2024 | 14 |
| 2025 | 10 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air-conditioning apparatus having first and second defrosting pipes
US-10465968-B2 · Nov 5, 2019 · US
Refrigerator and method for controlling same
US-2019277554-A1 · Sep 12, 2019 · US
System and method of controlling refrigerator and freezer units to reduce consumed energy
US-2019257567-A1 · Aug 22, 2019 · US
Defrost control using fan data
US-10352611-B2 · Jul 16, 2019 · US
System and method of controlling refrigerator and freezer units to reduce consumed energy
US-10323875-B2 · Jun 18, 2019 · US
Maximizing defrost mode in electrified vehicle having dual evaporator and dual heater core climate control system
US-10302346-B2 · May 28, 2019 · US
Cooling device
US-2019128590-A1 · May 2, 2019 · US
Cooling device comprising a thawing compartment and the control method thereof
US-10247465-B2 · Apr 2, 2019 · US
Refrigerator with tandem evaporators
US-2019003758-A1 · Jan 3, 2019 · US
Refrigeration cycle device
US-2018354344-A1 · Dec 13, 2018 · US
Refrigerator and method for controlling the same
US-2018313597-A1 · Nov 1, 2018 · US
Temperature control of refrigeration cavities in low ambient temperature conditions
US-2018299179-A1 · Oct 18, 2018 · US
Air conditioner
US-10101064-B2 · Oct 16, 2018 · US
Binary refrigeration apparatus
US-10077924-B2 · Sep 18, 2018 · US
Cooling apparatus, light source apparatus including cooling apparatus, and projection-type image display apparatus including light source apparatus
US-10041664-B2 · Aug 7, 2018 · US
Hvac variant for autonomous vehicle
US-2018141405-A1 · May 24, 2018 · US
Cooling apparatus and control method thereof
US-9970700-B2 · May 15, 2018 · US
Refrigerator
US-9958192-B2 · May 1, 2018 · US
Refrigerator
US-9958193-B2 · May 1, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25D21/002?
- CPC F25D21/002 is the Cooperative Patent Classification code for “Defroster control.”
- How many patents are filed under CPC F25D21/002 (Defroster control)?
- Our database includes 168 publications tagged with this CPC code.
- Is patent activity under CPC F25D21/002 growing?
- Publication counts under this code: 14 in 2024 vs 10 in 2025 (latest complete years).