Flow path structure of heat exchanger, and heat exchanger
US-11644252-B2 · May 9, 2023 · US
for preventing noise
for preventing noise · 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 | F28F2265/28 |
| Official title | for preventing noise |
| Display label | for preventing noise |
| Total patents | 71 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 9 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 9 |
| 2020 | 6 |
| 2021 | 15 |
| 2022 | 6 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Refrigerant vessel component and refrigeration circuit comprising such a refrigerant vessel component
US-11561034-B2 · Jan 24, 2023 · US
Deflector for condenser, condenser having it and chiller system
US-2022373231-A1 · Nov 24, 2022 · US
Heat exchanger assembly
US-11415338-B2 · Aug 16, 2022 · US
Heat exchanger and cooled electrical assembly comprising ihe same
US-11406040-B2 · Aug 2, 2022 · US
Heat exchanger assembly
US-11280341-B2 · Mar 22, 2022 · US
Heatsink module for inverter
US-11234348-B2 · Jan 25, 2022 · US
Cooling unit
US-2022011060-A1 · Jan 13, 2022 · US
Acoustic absorber with integrated heat sink
US-11204204-B2 · Dec 21, 2021 · US
Thermal management system using shape memory alloy actuator
US-11168584-B2 · Nov 9, 2021 · US
Liquid drains in core-in-shell heat exchanger
US-11162746-B2 · Nov 2, 2021 · US
Panel for heat exchange and improved noise reduction for a turbomachine
US-11143462-B2 · Oct 12, 2021 · US
Guiding panel for condenser, condenser and refrigeration system
US-11098934-B2 · Aug 24, 2021 · US
A refrigerant vessel component and refrigeration circuit comprising such a refrigerant vessel component
US-2021254870-A1 · Aug 19, 2021 · US
Heat exchanger with integrated noise suppression
US-11092388-B2 · Aug 17, 2021 · US
Guiding panel for condenser, condenser and refrigeration system
US-2021239372-A1 · Aug 5, 2021 · US
Sound-attenuating heat exchangers and methods of utilizing the same
US-11060480-B2 · Jul 13, 2021 · US
Heat exchanger and cooled electrical assembly comprising the same
US-2021176892-A1 · Jun 10, 2021 · US
Heatpipe to help reduce radio frequency interference
US-2021104995-A1 · Apr 8, 2021 · US
Air-conditioning unit
US-10969180-B2 · Apr 6, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28F2265/28?
- CPC F28F2265/28 is the Cooperative Patent Classification code for “for preventing noise.”
- How many patents are filed under CPC F28F2265/28 (for preventing noise)?
- Our database includes 71 publications tagged with this CPC code.
- Is patent activity under CPC F28F2265/28 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).