Synchronous electric machine for aircraft, associated propulsion device, turboshaft engine and method
US-2025337306-A1 · Oct 30, 2025 · US
having two or more windings; having two or more commutators; having two or more stators
having two or more windings; having two or more commutators; having two or more stators · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K23/36 |
| Official title | having two or more windings; having two or more commutators; having two or more stators |
| Display label | having two or more windings; having two or more commutators; having two or more stators |
| Total patents | 28 |
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 | 7 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Feedforward control of multiphase permanent magnet direct current motor drives
US-11218096-B2 · Jan 4, 2022 · US
Feedforward control of multiphase permanent magnet direct current motor drives
US-2021167703-A1 · Jun 3, 2021 · US
Electric power steering system and brush motor thereof
US-10879774-B2 · Dec 29, 2020 · US
Electric drive apparatus, chopper, DC motor, and electric device
US-10622876-B2 · Apr 14, 2020 · US
Double-stator rotating electric machine
US-10587175-B2 · Mar 10, 2020 · US
Electric drive apparatus, chopper, dc motor, and electric device
US-2019319523-A1 · Oct 17, 2019 · US
Armature, method for winding armature coil, and DC motor
US-10355571-B2 · Jul 16, 2019 · US
Double stator permanent magnet machine
US-10312782-B2 · Jun 4, 2019 · US
Armature, method for winding armature coil, and dc motor
US-2019149028-A1 · May 16, 2019 · US
Armature, method for winding armature coil, and DC motor
US-10044250-B2 · Aug 7, 2018 · US
Brush-communicated direct-current motor
US-10008913-B2 · Jun 26, 2018 · US
Electric power steering system and brush motor thereof
US-2018076697-A1 · Mar 15, 2018 · US
DC motor
US-9812911-B2 · Nov 7, 2017 · US
Multiple speed motor with thermal overload protection
US-9742246-B2 · Aug 22, 2017 · US
DC commutator motor and automobile including the same
US-9583985-B2 · Feb 28, 2017 · US
Multiple speed motor with thermal overload protection
US-2016352191-A1 · Dec 1, 2016 · US
Circuit for thermal protection and power regulation of electric motors
US-9479091-B2 · Oct 25, 2016 · US
Direct current motor, coil winding method for direct-current motor, and method for manufacturing direct-current motor
US-9419506-B2 · Aug 16, 2016 · US
Multiple speed motor with thermal overload protection
US-9413211-B2 · Aug 9, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K23/36?
- CPC H02K23/36 is the Cooperative Patent Classification code for “having two or more windings; having two or more commutators; having two or more stators.”
- How many patents are filed under CPC H02K23/36 (having two or more windings; having two or more commutators; having two or more stators)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC H02K23/36 growing?
- Publication counts under this code: 1 in 2022 vs 1 in 2025 (latest complete years).