Reciprocating compressor valve system with embedded sensor
US-2025027489-A1 · Jan 23, 2025 · US
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Valve noise
Valve 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 | F04B2201/0604 |
| Official title | Valve noise |
| Display label | Valve noise |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for operating a vacuum pump system
US-11719231-B2 · Aug 8, 2023 · US
Method for operating a vacuum pump system
US-2021381499-A1 · Dec 9, 2021 · US
Compact pump and diaphragm assembly used therein
US-10711775-B2 · Jul 14, 2020 · US
Fuel pump and inlet valve assembly thereof
US-10683825-B1 · Jun 16, 2020 · US
Fuel pump and inlet valve assembly thereof
US-2020173391-A1 · Jun 4, 2020 · US
Linear compressor and method for controlling a linear compressor
US-10221846-B2 · Mar 5, 2019 · US
Compact pump and diaphragm assembly used therein
US-2018119694-A1 · May 3, 2018 · US
Reciprocating compressor flow sensing
US-2018100497-A1 · Apr 12, 2018 · US
Denting device for improving surface roughness of valve plate and valve plate having dent pattern
US-2017299079-A1 · Oct 19, 2017 · US
Linear compressor and method for controlling a linear compressor
US-2017122307-A1 · May 4, 2017 · US
Pump assembly and method for assessing valve conditions in pump
US-2016208794-A1 · Jul 21, 2016 · US
Punching device for improving surface roughness, pattern processing method using same, and pattern thereof
US-2016101458-A1 · Apr 14, 2016 · US