Hair clipper pivot motor designed for battery power
US-2021408863-A1 · Dec 30, 2021 · US
for U-shaped, E-shaped or similarly shaped cores
for U-shaped, E-shaped or similarly shaped cores · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K3/524 |
| Official title | {for U-shaped, E-shaped or similarly shaped cores} |
| Display label | for U-shaped, E-shaped or similarly shaped cores |
| Total patents | 90 |
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 | 2 |
| 2016 | 4 |
| 2017 | 12 |
| 2018 | 10 |
| 2019 | 11 |
| 2020 | 11 |
| 2021 | 14 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 14 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Homopolar linear synchronous machine utilizing a cold plate
US-11196330-B2 · Dec 7, 2021 · US
Electric motor
US-11183895-B2 · Nov 23, 2021 · US
Axial-gap dynamo-electric machine
US-11165312-B2 · Nov 2, 2021 · US
Homopolar linear synchronous machine
US-2021336511-A1 · Oct 28, 2021 · US
Electric motor
US-11128198-B2 · Sep 21, 2021 · US
Electric machine winding assembly
US-11018545-B2 · May 25, 2021 · US
Low-cost modular inductive position sensor and method of manufacturing it
US-2021062864-A1 · Mar 4, 2021 · US
Axial flux rotor and axial flux electric machine
US-10916984-B2 · Feb 9, 2021 · US
Liquid cooled pole wedge
US-2021021166-A1 · Jan 21, 2021 · US
Liquid cooled pole wedge
US-10833547-B2 · Nov 10, 2020 · US
Electric circuit for use in an electric power assisted steering system
US-10804772-B2 · Oct 13, 2020 · US
Axial-air-gap dynamo-electric machine with a tubular-shaped stator bobbin
US-10763716-B2 · Sep 1, 2020 · US
Washing machine motor and washing machine having same
US-10753031-B2 · Aug 25, 2020 · US
Motor, fan, and refrigerator
US-2020119599-A1 · Apr 16, 2020 · US
Stator and rotating electrical machine including the same
US-10608492-B2 · Mar 31, 2020 · US
Motor
US-10601290-B2 · Mar 24, 2020 · US
Homopolar linear synchronous machine
US-2020091807-A1 · Mar 19, 2020 · US
Homopolar linear synchronous machine
US-2020088819-A1 · Mar 19, 2020 · US
Washing machine motor and washing machine having same
US-2020080246-A1 · Mar 12, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K3/524?
- CPC H02K3/524 is the Cooperative Patent Classification code for “for U-shaped, E-shaped or similarly shaped cores.”
- How many patents are filed under CPC H02K3/524 (for U-shaped, E-shaped or similarly shaped cores)?
- Our database includes 90 publications tagged with this CPC code.
- Is patent activity under CPC H02K3/524 growing?
- Publication counts under this code: 14 in 2024 vs 2 in 2025 (latest complete years).