Electric machines using axially-magnetized curvilinear permanent magnets
US-2024429761-A1 · Dec 26, 2024 · US
Construction of PM (H01F7/0278 takes precedence; PM compositions H01F1/032)
Construction of PM (H01F7/0278 takes precedence; PM compositions H01F1/032) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F7/021 |
| Official title | {Construction of PM (H01F7/0278 takes precedence; PM compositions H01F1/032)} |
| Display label | Construction of PM (H01F7/0278 takes precedence; PM compositions H01F1/032) |
| Total patents | 412 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 26 |
| 2017 | 48 |
| 2018 | 35 |
| 2019 | 43 |
| 2020 | 37 |
| 2021 | 39 |
| 2022 | 47 |
| 2023 | 38 |
| 2024 | 43 |
| 2025 | 34 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnetic field sensor and associated method that can sense a position of a magnet
US-9852832-B2 · Dec 26, 2017 · US
Magnetic Fastener
US-2017360171-A1 · Dec 21, 2017 · US
Rare earth magnet and motor
US-2017278609-A1 · Sep 28, 2017 · US
Arcuate magnet piece, permanent magnet piece, permanent magnet assembly, permanent magnet application device, and motor
US-2017162311-A1 · Jun 8, 2017 · US
Continuous winding magnets using thin film conductors without resistive joints
US-2017162309-A1 · Jun 8, 2017 · US
Magnetic Field Sensor and Associated Method That Can Sense a Position of a Magnet
US-2017146367-A1 · May 25, 2017 · US
Dipole ring magnetic field generator
US-9659695-B2 · May 23, 2017 · US
Additive manufacturing of magnets
US-2017092400-A1 · Mar 30, 2017 · US
Correction of angle errors in permanent magnets
US-9601251-B2 · Mar 21, 2017 · US
Method for producing permanent magnet magnetic circuit
US-2017062126-A1 · Mar 2, 2017 · US
Bonded magnet, bonded magnet component, and bonded magnet production method
US-9583244-B2 · Feb 28, 2017 · US
Permanent magnet comprising a stack of ferromagnetic and antiferromagnetic layers
US-2017053724-A1 · Feb 23, 2017 · US
Simultaneous magnetic balancing of two points
US-9552914-B2 · Jan 24, 2017 · US
Relay for electronic vehicle including permanent magnet and method of fabricating thereof
US-2017018386-A1 · Jan 19, 2017 · US
Passive magnetic bearing elements and configurations utilizing alternative polarization and amperian current direction
US-2017016477-A1 · Jan 19, 2017 · US
Permanent magnet and rotating machine including the same
US-2016365181-A1 · Dec 15, 2016 · US
Simultaneous magnetic balancing of two points
US-2016343493-A1 · Nov 24, 2016 · US
Joystick assembly
US-2016334830-A1 · Nov 17, 2016 · US
Compression-bonded magnet with case and method for producing the same
US-2016314887-A1 · Oct 27, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F7/021?
- CPC H01F7/021 is the Cooperative Patent Classification code for “Construction of PM (H01F7/0278 takes precedence; PM compositions H01F1/032).”
- How many patents are filed under CPC H01F7/021 (Construction of PM (H01F7/0278 takes precedence; PM compositions H01F1/032))?
- Our database includes 412 publications tagged with this CPC code.
- Is patent activity under CPC H01F7/021 growing?
- Publication counts under this code: 43 in 2024 vs 34 in 2025 (latest complete years).