De-icing control in a vapor compression heat pump system
US-10514191-B2 · Dec 24, 2019 · US
for preventing the freezing of a heat exchanger
for preventing the freezing of a heat exchanger · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B60H1/321 |
| Official title | {for preventing the freezing of a heat exchanger} |
| Display label | for preventing the freezing of a heat exchanger |
| Total patents | 148 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 12 |
| 2017 | 15 |
| 2018 | 12 |
| 2019 | 24 |
| 2020 | 21 |
| 2021 | 18 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 9 |
| 2025 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Semiconductor devices including stacked semiconductor chips
US-10483243-B2 · Nov 19, 2019 · US
System and method for de-icing a heat pump
US-10391835-B2 · Aug 27, 2019 · US
Vehicle air conditioner device
US-2019210429-A1 · Jul 11, 2019 · US
Return air intake grille de-icing method
US-2019092129-A1 · Mar 28, 2019 · US
Compressor Discharge Pressure Based Control Systems And Methods
US-2019092132-A1 · Mar 28, 2019 · US
Vehicle Air Conditioning Control Systems
US-2019092131-A1 · Mar 28, 2019 · US
Evaporator Freeze Prevention Systems and Methods
US-2019092117-A1 · Mar 28, 2019 · US
Semiconductor devices including stacked semiconductor chips
US-10199355-B2 · Feb 5, 2019 · US
Vehicle air conditioner
US-10189331-B2 · Jan 29, 2019 · US
Arrangement And Method For De-Icing A Heat Exchanger
US-2019009647-A1 · Jan 10, 2019 · US
Vehicle air conditioning system
US-10173498-B2 · Jan 8, 2019 · US
Refrigeration cycle device
US-2018361828-A1 · Dec 20, 2018 · US
Refrigeration cycle device
US-2018354344-A1 · Dec 13, 2018 · US
Air conditioner
US-2018334014-A1 · Nov 22, 2018 · US
Air conditioning system of a motor vehicle and method for operating the air conditioning system
US-2018319254-A1 · Nov 8, 2018 · US
Air-conditioning apparatus for vehicle
US-10107545-B2 · Oct 23, 2018 · US
Device for air conditioning a drive train and a passenger compartment of a vehicle
US-10099531-B2 · Oct 16, 2018 · US
Air conditioner for vehicle
US-10071611-B2 · Sep 11, 2018 · US
Methods and systems for controlling a vehicle air conditioner using a pressure sensor located within a compressor
US-10041552-B2 · Aug 7, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B60H1/321?
- CPC B60H1/321 is the Cooperative Patent Classification code for “for preventing the freezing of a heat exchanger.”
- How many patents are filed under CPC B60H1/321 (for preventing the freezing of a heat exchanger)?
- Our database includes 148 publications tagged with this CPC code.
- Is patent activity under CPC B60H1/321 growing?
- Publication counts under this code: 9 in 2024 vs 12 in 2025 (latest complete years).