Air Conditioning Compressor Sound Attenuation
US-2021388996-A1 · Dec 16, 2021 · US
Active noise-suppression
Active noise-suppression · 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 | F24F2013/247 |
| Official title | {Active noise-suppression} |
| Display label | Active noise-suppression |
| Total patents | 121 |
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 | 7 |
| 2016 | 4 |
| 2017 | 8 |
| 2018 | 12 |
| 2019 | 12 |
| 2020 | 12 |
| 2021 | 16 |
| 2022 | 15 |
| 2023 | 14 |
| 2024 | 14 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air conditioner
US-2021372658-A1 · Dec 2, 2021 · US
Communication upgrade module for communication with an information handling system air mover
US-2021325851-A1 · Oct 21, 2021 · US
Air conditioning compressor sound attenuation
US-11105520-B2 · Aug 31, 2021 · US
Air conditioner
US-2021156571-A1 · May 27, 2021 · US
Ventilation device for an interior of a motor vehicle and method for operating a ventilation device of this kind
US-10870329-B2 · Dec 22, 2020 · US
Humidifier
US-2020340694-A1 · Oct 29, 2020 · US
Air duct machine with switchable air-out directions and control method thereof and air-conditioning apparatus
US-2020300496-A1 · Sep 24, 2020 · US
Evaporative personal air cooler with clip
US-2020300531-A1 · Sep 24, 2020 · US
Mode Switcher, Heat Recovery Multi-Split Air Conditioning System and Control Method
US-2020278138-A1 · Sep 3, 2020 · US
Air conditioner
US-2020277960-A1 · Sep 3, 2020 · US
Regulating or control device and method for improving a noise quality of an air-conditioning system
US-10699689-B2 · Jun 30, 2020 · US
Air Conditioning Compressor Sound Attenuation
US-2020191415-A1 · Jun 18, 2020 · US
Air purification device and method for controlling same
US-2020182495-A1 · Jun 11, 2020 · US
Signal processing device, signal processing method, program, and rangehood apparatus
US-10591169-B2 · Mar 17, 2020 · US
Sound Suppression Chamber For An HVAC Air Handling Assembly
US-2020072494-A1 · Mar 5, 2020 · US
Ventilation system for improving indoor air quality, HVAC system comprising the same and process thereof
US-10578522-B2 · Mar 3, 2020 · US
Low noise retrofit damper system
US-2019376724-A1 · Dec 12, 2019 · US
Air guide grille, air inlet panel and air conditioner
US-2019368772-A1 · Dec 5, 2019 · US
Dryer and method for controlling the same
US-10470623-B2 · Nov 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24F2013/247?
- CPC F24F2013/247 is the Cooperative Patent Classification code for “Active noise-suppression.”
- How many patents are filed under CPC F24F2013/247 (Active noise-suppression)?
- Our database includes 121 publications tagged with this CPC code.
- Is patent activity under CPC F24F2013/247 growing?
- Publication counts under this code: 14 in 2024 vs 6 in 2025 (latest complete years).