Motor pump
US-2019360474-A1 · Nov 28, 2019 · US
the silencing means being arranged inside the pump housing
the silencing means being arranged inside the pump housing · 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 | F04C29/068 |
| Official title | {the silencing means being arranged inside the pump housing} |
| Display label | the silencing means being arranged inside the pump housing |
| Total patents | 156 |
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 | 16 |
| 2016 | 11 |
| 2017 | 15 |
| 2018 | 12 |
| 2019 | 11 |
| 2020 | 17 |
| 2021 | 14 |
| 2022 | 24 |
| 2023 | 18 |
| 2024 | 12 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric compressor
US-2019360734-A1 · Nov 28, 2019 · US
Compressor having a sleeve guide assembly
US-10458409-B2 · Oct 29, 2019 · US
Rotary compressor and assembly method thereof
US-2019271314-A1 · Sep 5, 2019 · US
Motor operated compressor
US-2019242384-A1 · Aug 8, 2019 · US
Introduced in a System for Connecting Refrigerant Fluid Discharge Tubes to Cylinder Caps of Hermetic Compressors, and Corresponding Process of Performing Thereof
US-2019219046-A1 · Jul 18, 2019 · US
Screw compressor
US-10145374-B2 · Dec 4, 2018 · US
Hermetic Compressor for Positive Displacement
US-2018335233-A1 · Nov 22, 2018 · US
Vacuum pump with sound absorption and check valve
US-2018335034-A1 · Nov 22, 2018 · US
Bearing plate noise damper
US-2018274542-A1 · Sep 27, 2018 · US
Rotary compressor
US-2018266423-A1 · Sep 20, 2018 · US
Electrically-driven compressor for vehicle
US-2018258935-A1 · Sep 13, 2018 · US
Compressor
US-2018238330-A1 · Aug 23, 2018 · US
Compressor and method for assembling a compressor
US-10036374-B2 · Jul 31, 2018 · US
Supercharger integral resonator
US-2018171865-A1 · Jun 21, 2018 · US
Motor-driven compressor with switching element
US-9964111-B2 · May 8, 2018 · US
Rotary compressor
US-9951775-B2 · Apr 24, 2018 · US
Electric compressor
US-2018080447-A1 · Mar 22, 2018 · US
Introduced in a System for Connecting Refrigerant Fluid Discharge Tubes to Cylinder Caps of Hermetic Compressors, and Corresponding Process of Performing Thereof
US-2017356434-A1 · Dec 14, 2017 · US
Compressor Having A Sleeve Guide Assembly
US-2017350396-A1 · Dec 7, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C29/068?
- CPC F04C29/068 is the Cooperative Patent Classification code for “the silencing means being arranged inside the pump housing.”
- How many patents are filed under CPC F04C29/068 (the silencing means being arranged inside the pump housing)?
- Our database includes 156 publications tagged with this CPC code.
- Is patent activity under CPC F04C29/068 growing?
- Publication counts under this code: 12 in 2024 vs 5 in 2025 (latest complete years).