Production method for R-T-B sintered magnet
US-10510483-B2 · Dec 17, 2019 · US
Rare Earth - Fe intermetallic alloys
Rare Earth - Fe intermetallic alloys · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B22F2301/355 |
| Official title | Rare Earth - Fe intermetallic alloys |
| Display label | Rare Earth - Fe intermetallic alloys |
| Total patents | 258 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 12 |
| 2017 | 18 |
| 2018 | 17 |
| 2019 | 26 |
| 2020 | 25 |
| 2021 | 30 |
| 2022 | 20 |
| 2023 | 36 |
| 2024 | 44 |
| 2025 | 23 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Alloy for R-T-B-based rare earth sintered magnet and manufacturing method thereof, and manufacturing method of R-T-B-based rare earth sintered magnet
US-10490324-B2 · Nov 26, 2019 · US
R-t-b sintered magnet and production method therefor
US-2019326053-A1 · Oct 24, 2019 · US
Production method of rare earth magnet and production apparatus used therefor
US-2019311826-A1 · Oct 10, 2019 · US
Ferrite sintered magnet and method for manufacturing the same
US-2019304642-A1 · Oct 3, 2019 · US
R-t-b-based sintered magnet
US-2019304639-A1 · Oct 3, 2019 · US
Method For Preparing Metal Powder, And Metal Powder
US-2019292635-A1 · Sep 26, 2019 · US
Rare earth permanent magnet and rare earth permanent magnet manufacturing method
US-2019295753-A1 · Sep 26, 2019 · US
R-t-b based permanent magnet
US-2019295752-A1 · Sep 26, 2019 · US
Method of processing rare earth magnet
US-2019255618-A1 · Aug 22, 2019 · US
ANISOTROPIC COMPLEX SINTERED MAGNET COMPRISING MnBi WHICH HAS IMPROVED MAGNETIC PROPERTIES AND METHOD OF PREPARING THE SAME
US-2019153565-A1 · May 23, 2019 · US
Feedstock and heterogeneous structure for tough rare earth permanent magnets and production therefor
US-2019115128-A1 · Apr 18, 2019 · US
Method for producing rare-earth magnet, and rare-earth magnet
US-2018330853-A1 · Nov 15, 2018 · US
Production method of rare earth magnet
US-2018308633-A1 · Oct 25, 2018 · US
Method for producing rare-earth magnets, and slurry application device
US-2018294095-A1 · Oct 11, 2018 · US
R-t-b based rare earth magnet
US-2018277288-A1 · Sep 27, 2018 · US
Method for producing r-t-b system sintered magnet
US-2018240590-A1 · Aug 23, 2018 · US
Bonded permanent magnets produced by additive manufacturing
US-2018229442-A1 · Aug 16, 2018 · US
Artificial permanent magnet and method for producing the artificial permanent magnet
US-2018211749-A1 · Jul 26, 2018 · 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-10020100-B2 · Jul 10, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B22F2301/355?
- CPC B22F2301/355 is the Cooperative Patent Classification code for “Rare Earth - Fe intermetallic alloys.”
- How many patents are filed under CPC B22F2301/355 (Rare Earth - Fe intermetallic alloys)?
- Our database includes 258 publications tagged with this CPC code.
- Is patent activity under CPC B22F2301/355 growing?
- Publication counts under this code: 44 in 2024 vs 23 in 2025 (latest complete years).