Rotor assembly for an electric excited synchronous motor (eesm)
US-2024429783-A1 · Dec 26, 2024 · US
Rotor cores with salient poles {; Variable reluctance rotors}
Rotor cores with salient poles {; Variable reluctance rotors} · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K1/24 |
| Official title | Rotor cores with salient poles {; Variable reluctance rotors} |
| Display label | Rotor cores with salient poles {; Variable reluctance rotors} |
| Total patents | 690 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 22 |
| 2016 | 48 |
| 2017 | 58 |
| 2018 | 74 |
| 2019 | 92 |
| 2020 | 84 |
| 2021 | 74 |
| 2022 | 58 |
| 2023 | 58 |
| 2024 | 59 |
| 2025 | 49 |
| 2026 | 14 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric motors
US-2024171046-A1 · May 23, 2024 · US
End winding support for an electric generator
US-2016380501-A1 · Dec 29, 2016 · US
Salient pole rotor
US-2016380491-A1 · Dec 29, 2016 · US
Washing machine to produce three-dimensional motion
US-9528213-B2 · Dec 27, 2016 · US
System and method for smoothing a salient rotor in electrical machines
US-9520751-B2 · Dec 13, 2016 · US
Main element of an electric machine
US-2016359381-A1 · Dec 8, 2016 · US
Armature core, armature, and electric motor
US-2016352176-A1 · Dec 1, 2016 · US
Electric motor
US-2016344273-A1 · Nov 24, 2016 · US
Pole to pole variation in shape of injection molded magnets of internal permanent magnet machines
US-2016344274-A1 · Nov 24, 2016 · US
Brushless motor
US-9502931-B2 · Nov 22, 2016 · US
Synchronous generator in a gearless wind turbine
US-2016336834-A1 · Nov 17, 2016 · US
Rotor and Motor Having the Same
US-2016322871-A1 · Nov 3, 2016 · US
Rotating electric machine
US-9484789-B2 · Nov 1, 2016 · US
Magnetless rotating electric machine
US-2016294239-A1 · Oct 6, 2016 · US
Motor having electromagnetic rotor
US-9461509-B2 · Oct 4, 2016 · US
Rotor assembly for an electric machine
US-2016285332-A1 · Sep 29, 2016 · US
Rotor assembly for an electric machine
US-2016204663-A1 · Jul 14, 2016 · US
Brushless motor
US-2016197541-A1 · Jul 7, 2016 · US
Laminated core for a magnetic bearing having individual laminations with at least one physical interruption and method for constructing such a laminated core
US-9356488-B2 · May 31, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K1/24?
- CPC H02K1/24 is the Cooperative Patent Classification code for “Rotor cores with salient poles {; Variable reluctance rotors}.”
- How many patents are filed under CPC H02K1/24 (Rotor cores with salient poles {; Variable reluctance rotors})?
- Our database includes 690 publications tagged with this CPC code.
- Is patent activity under CPC H02K1/24 growing?
- Publication counts under this code: 59 in 2024 vs 49 in 2025 (latest complete years).