Composition of particulate materials and process for obtaining self-lubricating sintered products
US-10835957-B2 · Nov 17, 2020 · US
comprising other non-metallic compounds or more than 5% of graphite
comprising other non-metallic compounds or more than 5% of graphite · 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 | C22C33/0228 |
| Official title | {comprising other non-metallic compounds or more than 5% of graphite} |
| Display label | comprising other non-metallic compounds or more than 5% of graphite |
| Total patents | 120 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 14 |
| 2017 | 10 |
| 2018 | 8 |
| 2019 | 10 |
| 2020 | 10 |
| 2021 | 13 |
| 2022 | 10 |
| 2023 | 15 |
| 2024 | 14 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for Preparing Soft Magnetic Material by Using Liquid Nitrogen Through High-Speed Ball Milling
US-2020282458-A1 · Sep 10, 2020 · US
CRYSTALLINE Fe-BASED ALLOY POWDER AND METHOD FOR PRODUCING SAME
US-2020243238-A1 · Jul 30, 2020 · US
Method for manufacturing powder magnetic core, and method for manufacturing electromagnetic component
US-2020234876-A1 · Jul 23, 2020 · US
Ferromagnetic Material Sputtering Target
US-2020216945-A1 · Jul 9, 2020 · US
Component with a ceramic base body having a conduit and a fastening element and method
US-10679778-B2 · Jun 9, 2020 · US
Plurality of flaky magnetic metal particles, pressed powder material, and rotating electric machine
US-2020043639-A1 · Feb 6, 2020 · US
Samarium-iron-nitrogen alloy powder and method for producing same
US-2020016663-A1 · Jan 16, 2020 · US
Friction material
US-10487251-B2 · Nov 26, 2019 · US
Method for forming thermal spray coating film of intermetallic compound, thermal spray coating film, method for producing metal product having spray coating film and glass-conveying roll
US-2019352760-A1 · Nov 21, 2019 · US
Pre-alloyed iron-based powder, an iron-based powder mixture containing the pre-alloyed iron-based powder and a method for making pressed and sintered components from the iron-based powder mixture
US-10465268-B2 · Nov 5, 2019 · US
Production method of rare earth magnet and production apparatus used therefor
US-2019311826-A1 · Oct 10, 2019 · US
Method of manufacturing pressed powder magnetic core
US-2019221340-A1 · Jul 18, 2019 · US
Iron-based sintered alloy and method for producing same
US-2019153573-A1 · May 23, 2019 · US
Iron-based powder for powder metallurgy and method for producing iron-based powder for powder metallurgy
US-10280488-B2 · May 7, 2019 · US
Composition of particulate materials and process for obtaining self-lubricating sintered products
US-2019030607-A1 · Jan 31, 2019 · US
Corrosion resistant article and methods of making
US-10179943-B2 · Jan 15, 2019 · US
Composition of particulate materials and process for obtaining self-lubricating sintered products
US-10166604-B2 · Jan 1, 2019 · US
Iron-based powder for powder metallurgy and method for producing iron-based powder for powder metallurgy
US-2018202029-A1 · Jul 19, 2018 · US
Methods of making metal bond abrasive articles and metal bond abrasive articles
US-2018126515-A1 · May 10, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22C33/0228?
- CPC C22C33/0228 is the Cooperative Patent Classification code for “comprising other non-metallic compounds or more than 5% of graphite.”
- How many patents are filed under CPC C22C33/0228 (comprising other non-metallic compounds or more than 5% of graphite)?
- Our database includes 120 publications tagged with this CPC code.
- Is patent activity under CPC C22C33/0228 growing?
- Publication counts under this code: 14 in 2024 vs 6 in 2025 (latest complete years).