Piston limiting structure, compressor, and heat exchange apparatus
US-11976643-B2 · May 7, 2024 · US
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Other pumps with movable, e.g. rotatable cylinders
Other pumps with movable, e.g. rotatable cylinders · 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 | F04B29/00 |
| Official title | {Other pumps with movable, e.g. rotatable cylinders} |
| Display label | Other pumps with movable, e.g. rotatable cylinders |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 2 |
| 2023 | 2 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Machine having a liquid lubrication system and a shaft
US-11692466-B2 · Jul 4, 2023 · US
Rotary cylinder piston compressor pump and compressor with rotary cylinder piston compressor pump
US-11566619-B2 · Jan 31, 2023 · US
Rotary Cylinder Piston Compressor Pump and Compressor with Rotary Cylinder Piston Compressor Pump
US-2021355943-A1 · Nov 18, 2021 · US
Piston limiting structure, compressor, and heat exchange apparatus
US-2021340980-A1 · Nov 4, 2021 · US
Machine having a liquid lubrication system and a shaft
US-2020378281-A1 · Dec 3, 2020 · US
Cooling of electrolytic capacitors in electrical climate compressors
US-10741332-B2 · Aug 11, 2020 · US
Fluid machinery, heat exchange equipment, and operating method for fluid machinery
US-10626858-B2 · Apr 21, 2020 · US
Cooling of electrolytic capacitors in electrical climate compressors
US-2019348225-A1 · Nov 14, 2019 · US
Cooling of electrolytic capacitors in electrical climate compressors
US-10410795-B2 · Sep 10, 2019 · US
Fluid machinery, heat exchange equipment, and operating method for fluid machinery
US-2018230981-A1 · Aug 16, 2018 · US
Cooling of electrolytic capacitors in electrical climate compressors
US-2017018367-A1 · Jan 19, 2017 · US
Lubricating oil supply structure
US-2015211396-A1 · Jul 30, 2015 · US