Method of refurbishing an energy conversion facility and refurbished energy conversion facility
US-12497940-B2 · Dec 16, 2025 · US
Rotors for essentially axial flow, e.g. for propeller turbines (with adjustable blades F03B3/14)
Rotors for essentially axial flow, e.g. for propeller turbines (with adjustable blades F03B3/14) · 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 | F03B3/126 |
| Official title | {Rotors for essentially axial flow, e.g. for propeller turbines (with adjustable blades F03B3/14)} |
| Display label | Rotors for essentially axial flow, e.g. for propeller turbines (with adjustable blades F03B3/14) |
| Total patents | 36 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 2 |
| 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
Secondary flow guide vane of a turbomachine and turbomachine provided therewith
US-12372001-B2 · Jul 29, 2025 · US
Unducted rectifier for a turbomachine, turbomachine module and aircraft turbomachine
US-12291980-B2 · May 6, 2025 · US
Secondary flow guide vane of a turbomachine and turbomachine provided therewith
US-2025137380-A1 · May 1, 2025 · US
Water transportation pipe power generation device with flow-regulating and pressure-regulating function
US-2025043761-A1 · Feb 6, 2025 · US
Method of refurbishing an energy conversion facility and refurbished energy conversion facility
US-2025012248-A1 · Jan 9, 2025 · US
Hydroturbine manufacture
US-12078141-B2 · Sep 3, 2024 · US
Unducted rectifier for a turbomachine, turbomachine module and aircraft turbomachine
US-2024271541-A1 · Aug 15, 2024 · US
Hydroturbine manufacture
US-11808245-B2 · Nov 7, 2023 · US
Hydroturbine manufacture
US-2023332570-A1 · Oct 19, 2023 · US
Torque to linear displacement for downhole power regulation
US-11719075-B2 · Aug 8, 2023 · US
Torque To Linear Displacement For Downhole Power Regulation
US-2023044672-A1 · Feb 9, 2023 · US
Energy generation system and method
US-11264920-B2 · Mar 1, 2022 · US
Horizontal-axis ocean current power generation device for underwater vehicle
US-11215160-B2 · Jan 4, 2022 · US
Method for estimating optimal efficiency point parameters and performance curve in axial-flow PAT power generation mode
US-11119131-B2 · Sep 14, 2021 · US
Horizontal-axis ocean current power generation device for underwater vehicle
US-2021239086-A1 · Aug 5, 2021 · US
Improvements Relating to Hydroturbine Manufacture
US-2021033060-A1 · Feb 4, 2021 · US
Energy generation system and method
US-10873274-B2 · Dec 22, 2020 · US
Counterbalanced and compensated power generation system
US-2020362820-A1 · Nov 19, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F03B3/126?
- CPC F03B3/126 is the Cooperative Patent Classification code for “Rotors for essentially axial flow, e.g. for propeller turbines (with adjustable blades F03B3/14).”
- How many patents are filed under CPC F03B3/126 (Rotors for essentially axial flow, e.g. for propeller turbines (with adjustable blades F03B3/14))?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC F03B3/126 growing?
- Publication counts under this code: 2 in 2024 vs 7 in 2025 (latest complete years).