Single-phase permanent magnet synchronous motor and dust collector
US-12206287-B2 · Jan 21, 2025 · US
for single-phase current
for single-phase current · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K19/04 |
| Official title | for single-phase current |
| Display label | for single-phase current |
| Total patents | 29 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 12 |
| 2018 | 2 |
| 2019 | 6 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Single-Phase Permanent Magnet Synchronous Motor and Dust Collector
US-2022368181-A1 · Nov 17, 2022 · US
Open loop compensation of current harmonics induced by parameter imbalance
US-2022263437-A1 · Aug 18, 2022 · US
Open loop compensation of current harmonics induced by parameter imbalance
US-11411515-B1 · Aug 9, 2022 · US
Support device for a rotor of a separately excited internal-rotor synchronous machine consisting of a support ring and a star disk
US-11349367-B2 · May 31, 2022 · US
Support Device for a Rotor of a Separately Excited Internal-Rotor Synchronous Machine Consisting of a Support Ring and a Star Disk
US-2021050761-A1 · Feb 18, 2021 · US
Hollow single-phase induction motor
US-10804780-B2 · Oct 13, 2020 · US
Motor and application apparatus utilizing the same
US-10505434-B2 · Dec 10, 2019 · US
Single phase permanent magnet motor
US-10461590-B2 · Oct 29, 2019 · US
Fluid generating device and electric apparatus using the same
US-10389217-B2 · Aug 20, 2019 · US
Single phase motor and rotor, having plurality of permanent magnets, of the same
US-10361613-B2 · Jul 23, 2019 · US
Single phase permanent magnet motor and hair dryer using the same
US-10299559-B2 · May 28, 2019 · US
Hollow Single-Phase Induction Motor
US-2019081541-A1 · Mar 14, 2019 · US
Motor and application apparatus utilizing the same
US-2018138791-A1 · May 17, 2018 · US
Method of manufacturing the rotor assembly for an electric motor
US-9899900-B2 · Feb 20, 2018 · US
Electric motor and electric apparatus using same
US-2017271968-A1 · Sep 21, 2017 · US
Single phase motor and rotor of the same
US-2017222524-A1 · Aug 3, 2017 · US
Motor And Stator Thereof
US-2017222497-A1 · Aug 3, 2017 · US
Single Phase Motor and Rotor of the Same
US-2017222527-A1 · Aug 3, 2017 · US
Single Phase Permanent Magnet Brushless Motor
US-2017149318-A1 · May 25, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K19/04?
- CPC H02K19/04 is the Cooperative Patent Classification code for “for single-phase current.”
- How many patents are filed under CPC H02K19/04 (for single-phase current)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC H02K19/04 growing?
- Publication counts under this code: 4 in 2022 vs 1 in 2025 (latest complete years).