Oil separator for compressor and compressor with oil separator
US-2026078758-A1 · Mar 19, 2026 · US
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with vanes hinged to the outer member and reciprocating with respect to the inner member
with vanes hinged to the outer member and reciprocating with respect to the inner member · 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 | F04C18/332 |
| Official title | with vanes hinged to the outer member and reciprocating with respect to the inner member |
| Display label | with vanes hinged to the outer member and reciprocating with respect to the inner member |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 1 |
| 2021 | 2 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compressor
US-2026009384-A1 · Jan 8, 2026 · US
Compressor having bulged bushings
US-12258965-B2 · Mar 25, 2025 · US
Compression mechanism
US-2024254989-A1 · Aug 1, 2024 · US
Moving part, compressor, and manufacturing method thereof
US-12038005-B2 · Jul 16, 2024 · US
Moving part, compressor, and manufacturing method thereof
US-2023250821-A1 · Aug 10, 2023 · US
Friction-Optimized Vacuum Orbiter Pump
US-2021222694-A1 · Jul 22, 2021 · US
Orbiter vacuum pump capable of dry-running
US-2021222693-A1 · Jul 22, 2021 · US
Rotary compressor
US-10309399-B2 · Jun 4, 2019 · US
Rotary compression mechanism
US-10145373-B2 · Dec 4, 2018 · US
Rotating cylinder type compressor
US-2018038372-A1 · Feb 8, 2018 · US
Rotary compressor and refrigerating cycle apparatus
US-9879675-B2 · Jan 30, 2018 · US
Rotary compressor
US-2017298936-A1 · Oct 19, 2017 · US
Method for producing a pendulum of a pendulum slide cell pump
US-9751163-B2 · Sep 5, 2017 · US
Rotary compression mechanism
US-2016115957-A1 · Apr 28, 2016 · US
Method for producing a pendulum of a pendulum slide cell pump
US-2015322943-A1 · Nov 12, 2015 · US
Rotary compressor
US-2015176583-A1 · Jun 25, 2015 · US
Rotary compressor and refrigeration cycle apparatus
US-8985985-B2 · Mar 24, 2015 · US
Rotary compressor and refrigerating cycle apparatus
US-2015078933-A1 · Mar 19, 2015 · US
Rotary compressor having semicircular-step-snap enlarged diameter portion in groove portion of end plate closing end portion of cylinder
US-8979517-B2 · Mar 17, 2015 · US