Electric machines using axially-magnetized curvilinear permanent magnets
US-2024429761-A1 · Dec 26, 2024 · US
Imparting anisotropy (methods and devices for magnetising permanent magnets H01F13/003)
Imparting anisotropy (methods and devices for magnetising permanent magnets H01F13/003) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F41/0273 |
| Official title | {Imparting anisotropy (methods and devices for magnetising permanent magnets H01F13/003)} |
| Display label | Imparting anisotropy (methods and devices for magnetising permanent magnets H01F13/003) |
| Total patents | 307 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 20 |
| 2016 | 29 |
| 2017 | 29 |
| 2018 | 26 |
| 2019 | 19 |
| 2020 | 26 |
| 2021 | 23 |
| 2022 | 33 |
| 2023 | 33 |
| 2024 | 35 |
| 2025 | 29 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processing of anisotropic permanent magnet without magnetic field
US-11948733-B2 · Apr 2, 2024 · US
Method for assembling rotor for use in IPM rotary machine
US-9742248-B2 · Aug 22, 2017 · US
Short-process method for preparing sintered NdFeB magnets with high magnetic properties recycling from NdFeB sludge
US-9728310-B2 · Aug 8, 2017 · US
Apparatus and method for materials processing utilizing a rotating magnetic field
US-9617189-B2 · Apr 11, 2017 · US
R-t-b-based alloy powder and method for producing same, and r-t-b-based sintered magnet and method for producing same
US-2017098497-A1 · Apr 6, 2017 · US
Additive manufacturing of magnets
US-2017092400-A1 · Mar 30, 2017 · US
Bonded magnet, bonded magnet component, and bonded magnet production method
US-9583244-B2 · Feb 28, 2017 · US
Rare earth sintered magnet and method for production thereof
US-9551052-B2 · Jan 24, 2017 · US
Rotor production method
US-2017012509-A1 · Jan 12, 2017 · US
Manufacturing method of rotor and rotor
US-2017005553-A1 · Jan 5, 2017 · US
Manufacturing method for magnet and magnet
US-2016379755-A1 · Dec 29, 2016 · US
Manufacturing method for magnet and magnet
US-2016375488-A1 · Dec 29, 2016 · US
Anisotropic Rare Earths-Free Matrix-Bonded High-Performance Permanent Magnet Having A Nanocrystalline Structure, And Method For Production Thereof
US-2016372243-A1 · Dec 22, 2016 · US
Production method of rare earth magnet
US-9520230-B2 · Dec 13, 2016 · US
Method of manufacturing rare earth magnet
US-2016336112-A1 · Nov 17, 2016 · US
SINTERED MAGNET BASED ON MnBi HAVING IMPROVED HEAT STABILITY AND METHOD OF PREPARING THE SAME
US-2016322134-A1 · Nov 3, 2016 · US
Rare earth permanent magnet and rare earth permanent magnet manufacturing method
US-2016322135-A1 · Nov 3, 2016 · US
Rare earth permanent magnetic material and method of preparing the same
US-2016307676-A1 · Oct 20, 2016 · US
Powder-filling system
US-2016293329-A1 · Oct 6, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F41/0273?
- CPC H01F41/0273 is the Cooperative Patent Classification code for “Imparting anisotropy (methods and devices for magnetising permanent magnets H01F13/003).”
- How many patents are filed under CPC H01F41/0273 (Imparting anisotropy (methods and devices for magnetising permanent magnets H01F13/003))?
- Our database includes 307 publications tagged with this CPC code.
- Is patent activity under CPC H01F41/0273 growing?
- Publication counts under this code: 35 in 2024 vs 29 in 2025 (latest complete years).