Rotary compressor
US-2024369059-A1 · Nov 7, 2024 · US
Mechanical Engineering
Mechanical Engineering · 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 | F04C2/3448 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 89 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 26 |
| 2017 | 24 |
| 2018 | 12 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 4 |
| 2024 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing a vane for a rotary vane pump, vane for a rotary vane pump and rotary vane pump
US-9855604-B2 · Jan 2, 2018 · US
Driving force distributing device
US-9845007-B2 · Dec 19, 2017 · US
Vane pumps with vane wear detection
US-9828992-B2 · Nov 28, 2017 · US
Lubricant vane pump
US-9759103-B2 · Sep 12, 2017 · US
Vane Pump
US-2017227004-A1 · Aug 10, 2017 · US
Variable displacement lubricant pump for an internal combustion engine with a temperature control valve
US-9726173-B2 · Aug 8, 2017 · US
Camshaft phaser with position control valve
US-9689286-B2 · Jun 27, 2017 · US
Vane pump device
US-2017175740-A1 · Jun 22, 2017 · US
Vane pump device
US-2017175737-A1 · Jun 22, 2017 · US
Vane pump device
US-2017175739-A1 · Jun 22, 2017 · US
Vane pump device
US-2017175741-A1 · Jun 22, 2017 · US
Vane pump device
US-2017175738-A1 · Jun 22, 2017 · US
Variable displacement vane pump
US-9664188-B2 · May 30, 2017 · US
Vane Cell Machine having a Pressure Piece which Delimits Two Pressure Chambers
US-2017138197-A1 · May 18, 2017 · US
Vane pump
US-9644626-B2 · May 9, 2017 · US
Vane pump device and hydraulic apparatus
US-2017122314-A1 · May 4, 2017 · US
Vane oil pump
US-2017122315-A1 · May 4, 2017 · US
Pump with mechanical seal assembly
US-9617994-B2 · Apr 11, 2017 · US
Variable displacement vane pump having connection groove communicating with suction-side back pressure port thereof
US-9611848-B2 · Apr 4, 2017 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C2/3448?
- CPC F04C2/3448 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F04C2/3448 (Mechanical Engineering)?
- Our database includes 89 publications tagged with this CPC code.
- Is patent activity under CPC F04C2/3448 growing?
- Publication counts under this code: 4 in 2023 vs 4 in 2024 (latest complete years).