Compressor, monitoring system, and method of monitoring compressor
US-11933291-B2 · Mar 19, 2024 · US
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Controlled or regulated
Controlled or regulated · 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 | F04C2270/025 |
| Official title | Controlled or regulated |
| Display label | Controlled or regulated |
| Total patents | 22 |
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 | 2 |
| 2017 | 4 |
| 2018 | 1 |
| 2019 | 7 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rotary compressors with variable speed and volume control
US-11852145-B2 · Dec 26, 2023 · US
Compressor, Monitoring System, and Method of Monitoring Compressor
US-2022260075-A1 · Aug 18, 2022 · US
Motor drive system and method
US-11286917-B2 · Mar 29, 2022 · US
Motor drive system and method
US-11105323-B2 · Aug 31, 2021 · US
Method for regulating the rotational speed of a compressor as a function of the available gas flow of a source and regulation thereby applied
US-10815997-B2 · Oct 27, 2020 · US
Rotary compressors with variable speed and volume control
US-2020132074-A1 · Apr 30, 2020 · US
Rotary compressors with variable speed and volume control
US-10533556-B2 · Jan 14, 2020 · US
Method for twin screw positive displacement pump protection
US-10495084-B2 · Dec 3, 2019 · US
Arrangement for specifying a pressure
US-10480505-B2 · Nov 19, 2019 · US
Load/unload control method for compressor system
US-10451052-B2 · Oct 22, 2019 · US
Motor drive system and method
US-2019277277-A1 · Sep 12, 2019 · US
Electric Oil Pump Device
US-2019271303-A1 · Sep 5, 2019 · US
Motor drive system and method
US-2019249650-A1 · Aug 15, 2019 · US
Electric pump
US-10302081-B2 · May 28, 2019 · US
Method for regulating the rotational speed of a compressor as a function of the available gas flow of a source and regulation thereby applied
US-2018283379-A1 · Oct 4, 2018 · US
Method for rotary positive displacement pump protection
US-9745979-B2 · Aug 29, 2017 · US
Load/unload control method for compressor system
US-2017218965-A1 · Aug 3, 2017 · US
Method for twin screw positive displacement pump protection
US-2017211573-A1 · Jul 27, 2017 · US
Electric pump
US-2017082104-A1 · Mar 23, 2017 · US