SmFeN-BASED ANISOTROPIC MAGNETIC POWDER AND COMPOSITE MATERIAL
US-2025357028-A1 · Nov 20, 2025 · US
Starting from compounds, e.g. oxides
Starting from compounds, e.g. oxides · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C22C33/0235 |
| Official title | {Starting from compounds, e.g. oxides} |
| Display label | Starting from compounds, e.g. oxides |
| Total patents | 51 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 7 |
| 2023 | 9 |
| 2024 | 6 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of producing bonded magnet comprising SmFeN-based anisotropic magnetic powder
US-12406784-B2 · Sep 2, 2025 · US
Iron-Based Alloy Strengthened by Intermetallic Compound Phase-Coated Nano-Oxide Phase and Preparation Method Thereof
US-2025101552-A1 · Mar 27, 2025 · US
Iron based powder
US-12168818-B2 · Dec 17, 2024 · US
Method of preparing magnetic powder and magnetic powder
US-2024363270-A1 · Oct 31, 2024 · US
Insulated covered soft magnetic powder
US-2024246144-A1 · Jul 25, 2024 · US
Anisotropic samarium-iron-nitrogen magnetic alloy powder and preparation method therefor
US-2024212899-A1 · Jun 27, 2024 · US
METHOD OF PRODUCING PHOSPHATE-COATED SmFeN-BASED ANISOTROPIC MAGNETIC POWDER
US-2024112838-A1 · Apr 4, 2024 · US
Two-step thermal treatment of nickel-containing sulfides for the production of ferronickel
US-2024042523-A1 · Feb 8, 2024 · US
PRODUCTION METHOD FOR PHOSPHATE-COATED SmFeN-BASED ANISOTROPIC MAGNETIC POWDER, AND BONDED MAGNET
US-2023415227-A1 · Dec 28, 2023 · US
METHOD FOR MANUFACTURING IRON (Fe)-NICKEL (Ni) ALLOY POWDER
US-2023381861-A1 · Nov 30, 2023 · US
Solid compound rapid reduction systems and methods
US-2023356299-A1 · Nov 9, 2023 · US
Preparation of nickel-based alloys using waste materials
US-2023340649-A1 · Oct 26, 2023 · US
Iron based powder
US-2023250519-A1 · Aug 10, 2023 · US
Method for preparing metal powder, and metal powder
US-11721460-B2 · Aug 8, 2023 · US
Method for producing anisotropic magnetic powder, and anisotropic magnetic powder
US-2023238161-A1 · Jul 27, 2023 · US
Iron based powder
US-11685979-B2 · Jun 27, 2023 · US
Fe-N-C Catalysts Synthesized by Non-Contact Pyrolysis of Gas Phase Iron
US-2023039237-A1 · Feb 9, 2023 · US
METHOD OF PRODUCING SmFeN-BASED ANISOTROPIC MAGNETIC POWDER AND SmFeN-BASED ANISOTROPIC MAGNETIC POWDER
US-2022406496-A1 · Dec 22, 2022 · US
Sputtering target for heat-assisted magnetic recording medium
US-2022383901-A1 · Dec 1, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22C33/0235?
- CPC C22C33/0235 is the Cooperative Patent Classification code for “Starting from compounds, e.g. oxides.”
- How many patents are filed under CPC C22C33/0235 (Starting from compounds, e.g. oxides)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC C22C33/0235 growing?
- Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).