Vane pump device
US-2022106957-A1 · Apr 7, 2022 · US
the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation · 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 | F04C2/3441 |
| Official title | {the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation} |
| Display label | the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation |
| Total patents | 83 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 5 |
| 2017 | 8 |
| 2018 | 15 |
| 2019 | 4 |
| 2020 | 6 |
| 2021 | 9 |
| 2022 | 8 |
| 2023 | 7 |
| 2024 | 5 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High-Pressure Fuel Pump
US-2022049674-A1 · Feb 17, 2022 · US
Cartridge vane pump and pump device
US-11231033-B2 · Jan 25, 2022 · US
Pump comprising an attached gasket
US-2021404467-A1 · Dec 30, 2021 · US
Pump comprising an axially acting spring gasket
US-2021404466-A1 · Dec 30, 2021 · US
Mass supply system
US-11166470-B2 · Nov 9, 2021 · US
Vane pump driven by an engine of an automobile
US-11149730-B2 · Oct 19, 2021 · US
Rotary vane pump
US-2021270266-A1 · Sep 2, 2021 · US
Vane cell pump
US-2021108634-A1 · Apr 15, 2021 · US
Cartridge vane pump and pump device
US-2021095664-A1 · Apr 1, 2021 · US
Variable displacement-type oil pump
US-10947972-B2 · Mar 16, 2021 · US
Vane pump
US-2021062810-A1 · Mar 4, 2021 · US
Automotive variable mechanical lubricant pump
US-2020400142-A1 · Dec 24, 2020 · US
Pump device
US-2020284255-A1 · Sep 10, 2020 · US
Pump unit with integrated piston pump and electric motor
US-10598177-B2 · Mar 24, 2020 · US
Adaptive pivot for variable displacement vane pump
US-2020072216-A1 · Mar 5, 2020 · US
Rotary compressor
US-2020056612-A1 · Feb 20, 2020 · US
Vane pump
US-2020018308-A1 · Jan 16, 2020 · US
Variable displacement pump
US-2019338771-A1 · Nov 7, 2019 · US
Integrated pressure plate and port plate for pump
US-10422335-B2 · Sep 24, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C2/3441?
- CPC F04C2/3441 is the Cooperative Patent Classification code for “the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation.”
- How many patents are filed under CPC F04C2/3441 (the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation)?
- Our database includes 83 publications tagged with this CPC code.
- Is patent activity under CPC F04C2/3441 growing?
- Publication counts under this code: 5 in 2024 vs 4 in 2025 (latest complete years).