Spheroidal graphite cast iron, cast article and automobile structure part made thereof, and method for producing spheroidal graphite cast iron article
US-12522901-B2 · Jan 13, 2026 · US
including procedures for adding magnesium
including procedures for adding magnesium · 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 | C22C33/10 |
| Official title | including procedures for adding magnesium |
| Display label | including procedures for adding magnesium |
| Total patents | 37 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 7 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 5 |
| 2022 | 6 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ferritic spheroidal graphite cast iron, differential case, and differential device
US-12270092-B2 · Apr 8, 2025 · US
Biodegradable iron-containing compositions, methods of preparing and applications therefor
US-2025090731-A1 · Mar 20, 2025 · US
Biodegradable iron-containing compositions, methods of preparing and applications therefor
US-12171912-B2 · Dec 24, 2024 · US
Spheroidal Graphite Cast Iron, Method for Manufacturing Spheroidal Graphite Cast Iron, and Spheroidizing Treatment Agent
US-2024167126-A1 · May 23, 2024 · US
Spheroidal graphite cast iron and method of producing spheroidal graphite cast iron, and vehicle undercarriage parts
US-11946109-B2 · Apr 2, 2024 · US
Spherical graphite cast iron semi-solid casting method and semi-solid cast product
US-11920205-B2 · Mar 5, 2024 · US
Method for producing die-cast product of spherical graphitic cast iron including ultrafine spherical graphite, and spheroidizing treatment agent
US-11845999-B2 · Dec 19, 2023 · US
Spheroidal graphite cast iron, cast article and automobile structure part made thereof, and method for producing spheroidal graphite cast iron article
US-2023392237-A1 · Dec 7, 2023 · US
Biodegradable iron-containing compositions, methods of preparing and applications therefor
US-2023211053-A1 · Jul 6, 2023 · US
Ferritic spheroidal graphite cast iron, differential case, and differential device
US-2023160044-A1 · May 25, 2023 · US
Biodegradable iron-containing compositions, methods of preparing and applications therefor
US-11590266-B2 · Feb 28, 2023 · US
Spheroidal graphite cast iron
US-11466349-B2 · Oct 11, 2022 · US
Spherical graphite cast iron semi-solid casting method and semi-solid cast product
US-2022275467-A1 · Sep 1, 2022 · US
Spheroidal graphite cast iron, cast article and automobile structure part made thereof, and method for producing spheroidal graphite cast iron article
US-2022243308-A1 · Aug 4, 2022 · US
Spheroidal graphite cast iron and method of producing spheroidal graphite cast iron, and vehicle undercarriage parts
US-2022213568-A1 · Jul 7, 2022 · US
Biodegradable iron-containing compositions, methods of preparing and applications therefor
US-11376349-B2 · Jul 5, 2022 · US
Method for producing die-cast product of spherical graphitic cast iron including ultrafine spherical graphite, and spheroidizing treatment agent
US-2022106652-A1 · Apr 7, 2022 · US
Ductile iron composition and process of forming a ductile iron component
US-10787726-B2 · Sep 29, 2020 · US
Spherical graphite cast iron semi-solid casting method and semi-solid cast product
US-2020283859-A1 · Sep 10, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22C33/10?
- CPC C22C33/10 is the Cooperative Patent Classification code for “including procedures for adding magnesium.”
- How many patents are filed under CPC C22C33/10 (including procedures for adding magnesium)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC C22C33/10 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).