Synchronous electrical machine and boat comprising such a machine
US-12506391-B2 · Dec 23, 2025 · US
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for pole-changing
for pole-changing · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K19/32 |
| Official title | for pole-changing |
| Display label | for pole-changing |
| Total patents | 18 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multi-winding set fractional slot synchronous machine
US-2025246959-A1 · Jul 31, 2025 · US
Rotor with interconnectable coils units, electric drive machine and motor vehicle
US-12244190-B2 · Mar 4, 2025 · US
Starter/generator arrangements for gas turbine engines
US-2024243638-A1 · Jul 18, 2024 · US
Exciter windings for wide speed operation
US-11936252-B2 · Mar 19, 2024 · US
Synchronous electrical machine and boat comprising such a machine
US-2023378859-A1 · Nov 23, 2023 · US
Rotor with Interconnectable Coils Units, Electric Drive Machine and Motor Vehicle
US-2023147001-A1 · May 11, 2023 · US
Exciter windings for wide speed operation
US-2023012092-A1 · Jan 12, 2023 · US
Assembly for electrically exciting the rotor of an electrical machine, and method for operation
US-11336157-B2 · May 17, 2022 · US
Assembly for electrically exciting the rotor of an electrical machine, and method for operation
US-2021367487-A1 · Nov 25, 2021 · US
System and installation for generating a three-phase alternating voltage
US-2019288589-A1 · Sep 19, 2019 · US
Controller for permanent magnet synchronous motor, image forming apparatus, and control method
US-9929686-B2 · Mar 27, 2018 · US
Reluctance motor having inductor pole coils located between adjacent ones of the salient poles of a rotor
US-9917484-B2 · Mar 13, 2018 · US
Controller for permanent magnet synchronous motor, image forming apparatus, and control method
US-2018019700-A1 · Jan 18, 2018 · US
Controller for permanent magnet synchronous motor, image forming apparatus, and control method
US-2018019693-A1 · Jan 18, 2018 · US
Variable speed generator having multiple exciter windings and selectable, independently activatable pole configurations
US-9621090-B2 · Apr 11, 2017 · US
Variable speed generator
US-2016079899-A1 · Mar 17, 2016 · US
Double stator switched reluctance apparatus
US-9231457-B2 · Jan 5, 2016 · US