Cast iron, in particular for components of disc brakes
US-12473617-B2 · Nov 18, 2025 · US
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Manufacture of cast-iron
Manufacture of cast-iron · 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 | C21C1/08 |
| Official title | Manufacture of cast-iron |
| Display label | Manufacture of cast-iron |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 3 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Nickel magnesium wire injection system and method thereof
US-2025290168-A1 · Sep 18, 2025 · US
Foundry coke products and associated systems and processing methods via cupolas
US-2024229173-A1 · Jul 11, 2024 · US
Foundry coke products and associated processing methods via cupolas
US-11946108-B2 · Apr 2, 2024 · US
Foundry coke products and associated processing methods via cupolas
US-2023142380-A1 · May 11, 2023 · US
Cast iron, in particular for components of disc brakes
US-2022251691-A1 · Aug 11, 2022 · US
Nickel magnesium wire injection system and method thereof
US-2021340639-A1 · Nov 4, 2021 · US
Physical property improvement of iron castings using carbon nanomaterials
US-10844446-B2 · Nov 24, 2020 · US
High-strength flake graphite cast iron, manufacturing method thereof, and engine body for internal combustion engine including cast iron
US-9719157-B2 · Aug 1, 2017 · US
Method for manufacturing high strength flake graphite cast iron for an engine body and flake graphite cast iron for an engine body
US-9708694-B2 · Jul 18, 2017 · US
High strength flake graphite cast iron having excellent workability and preparation method thereof
US-9689059-B2 · Jun 27, 2017 · US
Physical property improvement of iron castings using carbon nanomaterials
US-2016083812-A1 · Mar 24, 2016 · US
High-strength flake graphite cast iron, manufacturing method thereof, and engine body for internal combustion engine including cast iron
US-2015368763-A1 · Dec 24, 2015 · US
Method for manufacturing high strength flake graphite cast iron, flake graphite cast iron manufactured by the method, and engine body comprising the cast iron for internal combustion engine
US-2015027399-A1 · Jan 29, 2015 · US