Compressor and air conditioner having the same
US-9851131-B2 · Dec 26, 2017 · US
Sound
Sound · 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 | F25B2500/12 |
| Official title | Sound |
| Display label | Sound |
| Total patents | 434 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 16 |
| 2017 | 31 |
| 2018 | 54 |
| 2019 | 63 |
| 2020 | 52 |
| 2021 | 44 |
| 2022 | 39 |
| 2023 | 29 |
| 2024 | 43 |
| 2025 | 32 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air-conditioning apparatus
US-2017336115-A1 · Nov 23, 2017 · US
Heat dissipating blower and refrigerator including the same
US-2017314827-A1 · Nov 2, 2017 · US
Refrigerant cycle device
US-9803904-B2 · Oct 31, 2017 · US
Expansion valve, and refrigeration cycle system using expansion valve
US-2017307268-A1 · Oct 26, 2017 · US
Compressor having sound control system
US-2017241442-A1 · Aug 24, 2017 · US
Muffler for air-conditioning apparatus and air-conditioning apparatus including the same
US-2017234552-A1 · Aug 17, 2017 · US
Hermetic compressor and refrigeration device
US-2017211563-A1 · Jul 27, 2017 · US
Expansion valve and vibration-proof spring
US-9702601-B2 · Jul 11, 2017 · US
Expansion valve and refrigeration cycle apparatus
US-2017191717-A1 · Jul 6, 2017 · US
A pulsation damper for a vapour compression system
US-2017191703-A1 · Jul 6, 2017 · US
Expansion valve
US-2017176067-A1 · Jun 22, 2017 · US
Apparatus for separating and storing liquid refrigerant in refrigerant circuit
US-2017176069-A1 · Jun 22, 2017 · US
Air-conditioning apparatus and operation control method therefor
US-9644877-B2 · May 9, 2017 · US
Accumulator
US-9636622-B2 · May 2, 2017 · US
Valve mechanism for an air conditioning system
US-2017115041-A1 · Apr 27, 2017 · US
Refrigeration apparatus
US-9587863-B2 · Mar 7, 2017 · US
Stirling engine displacer drive
US-9574797-B2 · Feb 21, 2017 · US
Electric motor, hermetic compressor, and refrigeration cycle apparatus
US-2017045268-A1 · Feb 16, 2017 · US
Air conditioner and method of operating the same
US-2017045261-A1 · Feb 16, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25B2500/12?
- CPC F25B2500/12 is the Cooperative Patent Classification code for “Sound.”
- How many patents are filed under CPC F25B2500/12 (Sound)?
- Our database includes 434 publications tagged with this CPC code.
- Is patent activity under CPC F25B2500/12 growing?
- Publication counts under this code: 43 in 2024 vs 32 in 2025 (latest complete years).