Hydropower equipment with graded utilization of kinetic energy of flowing water
US-12454937-B2 · Oct 28, 2025 · US
Stator blades; Guide conduits or vanes, e.g. adjustable {(conduits in dams or the like F03B13/08; arrangement of valves F03B11/004)}
Stator blades; Guide conduits or vanes, e.g. adjustable {(conduits in dams or the like F03B13/08; arrangement of valves F03B11/004)} · 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 | F03B3/18 |
| Official title | Stator blades; Guide conduits or vanes, e.g. adjustable {(conduits in dams or the like F03B13/08; arrangement of valves F03B11/004)} |
| Display label | Stator blades; Guide conduits or vanes, e.g. adjustable {(conduits in dams or the like F03B13/08; arrangement of valves F03B11/004)} |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 5 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 4 |
| 2021 | 6 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 7 |
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
Hydropower equipment with gradual utilization of kinetic energy of flowing water
US-2025243839-A1 · Jul 31, 2025 · US
Energy Harvesting and Electrical Power Generation
US-2025119092-A1 · Apr 10, 2025 · US
Water transportation pipe power generation device with flow-regulating and pressure-regulating function
US-2025043761-A1 · Feb 6, 2025 · US
Energy harvesting and electrical power generation
US-12212276-B2 · Jan 28, 2025 · US
Water wheel, hydraulic power generation device, and hydraulic power generation system
US-2025012247-A1 · Jan 9, 2025 · US
Customized method for strengthening the water droplet erosion resistance on steam turbine blade surfaces
US-2024256730-A1 · Aug 1, 2024 · US
Energy Harvesting and Electrical Power Generation
US-2024097600-A1 · Mar 21, 2024 · US
Conical turbine hydraulic machine
US-2024044312-A1 · Feb 8, 2024 · US
Energy harvesting and electrical power generation
US-11770095-B2 · Sep 26, 2023 · US
Francis-type turbine runner and Francis-type turbine
US-11566595-B2 · Jan 31, 2023 · US
Guide vane bearing and maintenance method
US-11300006-B2 · Apr 12, 2022 · US
Method for stabilizing the rotation speed of a hydraulic machine with S-characteristics and installation for converting hydraulic energy into electrical energy
US-11231006-B2 · Jan 25, 2022 · US
Hydraulic turbine
US-11073124-B2 · Jul 27, 2021 · US
Francis-type turbine runner and francis-type turbine
US-2021207569-A1 · Jul 8, 2021 · US
Energy harvesting and electrical power generation
US-2021203268-A1 · Jul 1, 2021 · US
Methods, systems, and devices to optimize a fluid harvester
US-11047360-B1 · Jun 29, 2021 · US
Apparatus and method for modifying a geometry of a turbine part
US-10907609-B2 · Feb 2, 2021 · US
Guide vane apparatus for water turbine and water turbine equipped with the same
US-10900462-B2 · Jan 26, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F03B3/18?
- CPC F03B3/18 is the Cooperative Patent Classification code for “Stator blades; Guide conduits or vanes, e.g. adjustable {(conduits in dams or the like F03B13/08; arrangement of valves F03B11/004)}.”
- How many patents are filed under CPC F03B3/18 (Stator blades; Guide conduits or vanes, e.g. adjustable {(conduits in dams or the like F03B13/08; arrangement of valves F03B11/004)})?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC F03B3/18 growing?
- Publication counts under this code: 3 in 2024 vs 7 in 2025 (latest complete years).