Apparatus for improved cleaning of medical devices
US-2025359746-A1 · Nov 27, 2025 · US
with substantially axial flow throughout rotors, e.g. propeller turbines {(rotors per se F03B3/126)}
with substantially axial flow throughout rotors, e.g. propeller turbines {(rotors per se F03B3/126)} · 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 | F03B3/04 |
| Official title | with substantially axial flow throughout rotors, e.g. propeller turbines {(rotors per se F03B3/126)} |
| Display label | with substantially axial flow throughout rotors, e.g. propeller turbines {(rotors per se F03B3/126)} |
| Total patents | 50 |
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 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 7 |
| 2019 | 9 |
| 2020 | 8 |
| 2021 | 7 |
| 2022 | 3 |
| 2023 | 3 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Water transportation pipe power generation device with flow-regulating and pressure-regulating function
US-12429022-B2 · Sep 30, 2025 · US
Stop and go pig
US-12320461-B2 · Jun 3, 2025 · US
Water transportation pipe power generation device with flow-regulating and pressure-regulating function
US-2025043761-A1 · Feb 6, 2025 · US
Torque to linear displacement for downhole power regulation
US-11719075-B2 · Aug 8, 2023 · US
Vertical shaft wind power generation device and hydropower generation device accommodated in container
US-11592004-B2 · Feb 28, 2023 · US
Torque To Linear Displacement For Downhole Power Regulation
US-2023044672-A1 · Feb 9, 2023 · US
Turbines and associated components, systems and methods
US-2022341328-A1 · Oct 27, 2022 · US
Stop & go pig
US-2022213999-A1 · Jul 7, 2022 · US
Turbines and associated components, systems and methods
US-11371355-B2 · Jun 28, 2022 · US
Turbines and associated components, systems and methods
US-2021363887-A1 · Nov 25, 2021 · US
Onshore equipped ocean thermal and hydraulic energy conversion system and method
US-11111906-B1 · Sep 7, 2021 · US
Onshore equipped ocean thermal and hydraulic energy conversion system and method
US-2021254607-A1 · Aug 19, 2021 · US
Vertical shaft wind power generation device and hydropower generation device accommodated in container
US-2021222676-A1 · Jul 22, 2021 · US
Systems and methods for augmenting power generation based on thermal energy conversion using solar or radiated thermal energy
US-11052981-B2 · Jul 6, 2021 · US
Methods, systems, and devices to optimize a fluid harvester
US-11047360-B1 · Jun 29, 2021 · US
Hydroelectric power generation apparatus
US-10947950-B2 · Mar 16, 2021 · US
Rotating electrical machine apparatus
US-10840769-B2 · Nov 17, 2020 · US
Hydroelectric power generation apparatus
US-2020277928-A1 · Sep 3, 2020 · US
Method for Starting a Hydroelectric Turbine
US-2020232441-A1 · Jul 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F03B3/04?
- CPC F03B3/04 is the Cooperative Patent Classification code for “with substantially axial flow throughout rotors, e.g. propeller turbines {(rotors per se F03B3/126)}.”
- How many patents are filed under CPC F03B3/04 (with substantially axial flow throughout rotors, e.g. propeller turbines {(rotors per se F03B3/126)})?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC F03B3/04 growing?
- Publication counts under this code: 3 in 2023 vs 4 in 2025 (latest complete years).