Rotor assembly for an electric machine with thermal management features
US-10523079-B2 · Dec 31, 2019 · US
Synchronous motors
Synchronous motors · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K19/02 |
| Official title | Synchronous motors |
| Display label | Synchronous motors |
| Total patents | 144 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 11 |
| 2017 | 19 |
| 2018 | 17 |
| 2019 | 19 |
| 2020 | 15 |
| 2021 | 10 |
| 2022 | 10 |
| 2023 | 9 |
| 2024 | 13 |
| 2025 | 11 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Sealed switched reluctance motor
US-2019334422-A1 · Oct 31, 2019 · US
Compressor
US-10374488-B2 · Aug 6, 2019 · US
Sealed switched reluctance motor
US-10348172-B2 · Jul 9, 2019 · US
Synchronous motor
US-10277099-B2 · Apr 30, 2019 · US
Electric machine
US-10256708-B2 · Apr 9, 2019 · US
Multi-phase magnetic component and method of forming
US-10229776-B2 · Mar 12, 2019 · US
Graded magnetic component and method of forming
US-10229777-B2 · Mar 12, 2019 · US
Assembled hollow rotor shaft having a cooling-medium distribution element
US-2018358867-A1 · Dec 13, 2018 · US
Reluctance motor and flux barrier structure thereof
US-10135306-B2 · Nov 20, 2018 · US
Synchronous reluctance electric machine
US-10116174-B2 · Oct 30, 2018 · US
Main field voltage limiter in brushless synchronous machines
US-10084409-B2 · Sep 25, 2018 · US
Rotor and motor having the same
US-10084353-B2 · Sep 25, 2018 · US
Synchronous reluctance rotating electric machine
US-10069390-B2 · Sep 4, 2018 · US
Driving motor
US-10033255-B2 · Jul 24, 2018 · US
Methods for manufacturing a rotor assembly for an electrical machine
US-2018200823-A1 · Jul 19, 2018 · US
Electric machine for downhole applications
US-2018171767-A1 · Jun 21, 2018 · US
Motorized device with reciprocating motion of a locomotion member and associated control method
US-2018155020-A1 · Jun 7, 2018 · US
Charging system using wound rotor synchronous motor
US-2018115181-A1 · Apr 26, 2018 · US
Charging system using wound rotor synchronous motor
US-2018115180-A1 · Apr 26, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K19/02?
- CPC H02K19/02 is the Cooperative Patent Classification code for “Synchronous motors.”
- How many patents are filed under CPC H02K19/02 (Synchronous motors)?
- Our database includes 144 publications tagged with this CPC code.
- Is patent activity under CPC H02K19/02 growing?
- Publication counts under this code: 13 in 2024 vs 11 in 2025 (latest complete years).