Pump body with oil guide channel for lubricating between the end face of the inner ring and the contact face of the flange structure
US-11448219-B2 · Sep 20, 2022 · US
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the vanes having the form of rollers, slippers or the like
the vanes having the form of rollers, slippers or the like · 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 | F04C18/3447 |
| Official title | {the vanes having the form of rollers, slippers or the like} |
| Display label | the vanes having the form of rollers, slippers or the like |
| Total patents | 11 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 1 |
| 2021 | 5 |
| 2022 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hermetic compressor
US-11448215-B2 · Sep 20, 2022 · US
Compressor pump body, compressor, and air conditioner with a vane enlargement portion
US-11408287-B2 · Aug 9, 2022 · US
Oil line structure of compressor and compressor
US-11248609-B2 · Feb 15, 2022 · US
Pump Body and Compressor with Pump Body
US-2021254621-A1 · Aug 19, 2021 · US
Compressor pump body, compressor, and air conditioner
US-2021231123-A1 · Jul 29, 2021 · US
Oil Line Structure of Compressor and Compressor
US-2021131437-A1 · May 6, 2021 · US
Hermetic compressor
US-2021095669-A1 · Apr 1, 2021 · US
Hermetic compressor having a vane with guide portion
US-10883502-B2 · Jan 5, 2021 · US
Hermetic compressor
US-2018223844-A1 · Aug 9, 2018 · US
Compressor
US-2017284397-A1 · Oct 5, 2017 · US