Windmill and wind power generation apparatus
US-12276265-B2 · Apr 15, 2025 · US
Rotors
Rotors · 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 | F03D3/06 |
| Official title | Rotors |
| Display label | Rotors |
| Total patents | 37 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 6 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Flettner rotor with localized suction
US-12129009-B2 · Oct 29, 2024 · US
Windmill and wind power generation apparatus
US-2024167455-A1 · May 23, 2024 · US
Use of layer structures in wind power plants
US-11904582-B2 · Feb 20, 2024 · US
Efficient wind energy convertor without gearbox or multi-pole generator
US-11885302-B2 · Jan 30, 2024 · US
A flettner rotor with localized suction
US-2023174208-A1 · Jun 8, 2023 · US
Vertical shaft wind power generation device and hydropower generation device accommodated in container
US-11592004-B2 · Feb 28, 2023 · US
Wind power generator
US-2022389908-A1 · Dec 8, 2022 · US
Lightning conditioning of aircraft
US-11260987-B2 · Mar 1, 2022 · US
Efficient wind energy convertor without gearbox or multi-pole generator
US-2021388812-A1 · Dec 16, 2021 · US
Lightning conditioning of aircraft
US-2021371124-A1 · Dec 2, 2021 · US
Vertical shaft wind power generation device and hydropower generation device accommodated in container
US-2021222676-A1 · Jul 22, 2021 · US
Rotor blade mold assembly and method for forming rotor blade
US-10710321-B2 · Jul 14, 2020 · US
Use of layer structures in wind power plants
US-10293586-B2 · May 21, 2019 · US
Seal shoe for a hydrostatic non-contact seal device
US-10208615-B2 · Feb 19, 2019 · US
Hybrid street light
US-2019041015-A1 · Feb 7, 2019 · US
Seal shoe for a hydrostatic non-contact seal device
US-2018306046-A1 · Oct 25, 2018 · US
Seal shoe for a hydrostatic non-contact seal device
US-10030531-B2 · Jul 24, 2018 · US
Hub and bearing system and a turbine comprising the hub and bearing system
US-9938959-B2 · Apr 10, 2018 · US
Use of layer structures in wind power plants
US-2018050526-A1 · Feb 22, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F03D3/06?
- CPC F03D3/06 is the Cooperative Patent Classification code for “Rotors.”
- How many patents are filed under CPC F03D3/06 (Rotors)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC F03D3/06 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).