Primary Carbide Refinement In Hypereutectic High Chromium Cast Irons
US-2024052462-A1 · Feb 15, 2024 · US
Making cast-iron alloys
Making cast-iron alloys · 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 | C22C33/08 |
| Official title | Making cast-iron alloys |
| Display label | Making cast-iron alloys |
| Total patents | 79 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 9 |
| 2017 | 11 |
| 2018 | 6 |
| 2019 | 8 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 13 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cylinder liner and manufacturing method for same
US-11499498-B2 · Nov 15, 2022 · US
Centrifugally cast composite roll for hot rolling
US-2022339685-A1 · Oct 27, 2022 · US
Method for controlling amount of silicon added to ductile cast iron, method for casting ductile cast iron, and cast product
US-2022325390-A1 · Oct 13, 2022 · US
Method of manufacturing cam piece for continuously variable valve duration and cam piece manufactured therefrom
US-11441204-B2 · Sep 13, 2022 · US
Method for manufacturing cast iron casting with fining graphite and suspension part
US-11396041-B2 · Jul 26, 2022 · US
Steel Alloy, Use of Such a Steel Alloy, and Component
US-2022154316-A1 · May 19, 2022 · US
Steel resistant to seawater corrosion and manufacturing method therefor
US-2022064768-A1 · Mar 3, 2022 · US
Cylinder liner and manufacturing method for same
US-2022025829-A1 · Jan 27, 2022 · US
Iron-based alloy and method of manufacturing the same
US-2021317541-A1 · Oct 14, 2021 · US
Tough And Corrosion Resistant White Cast Irons
US-2021238702-A1 · Aug 5, 2021 · US
High-strength gray cast iron
US-10975458-B2 · Apr 13, 2021 · US
Physical property improvement of iron castings using carbon nanomaterials
US-10844446-B2 · Nov 24, 2020 · US
Method for manufacturing cast iron casting with fining graphite and suspension part
US-2020206806-A1 · Jul 2, 2020 · US
Method of manufacturing cam piece for continuously variable valve duration and cam piece manufactured therefrom
US-2020181726-A1 · Jun 11, 2020 · US
Black Heart Malleable Cast-Iron and Method for Manufacturing Same
US-2020080173-A1 · Mar 12, 2020 · US
Method for thermal control of cast-in components during manufacturing
US-10363601-B2 · Jul 30, 2019 · US
Method for producing alloy steel
US-2019211425-A1 · Jul 11, 2019 · US
Spheroidal graphite cast iron
US-2019211426-A1 · Jul 11, 2019 · US
Erosion And Corrosion Resistant White Cast Irons
US-2019185975-A1 · Jun 20, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22C33/08?
- CPC C22C33/08 is the Cooperative Patent Classification code for “Making cast-iron alloys.”
- How many patents are filed under CPC C22C33/08 (Making cast-iron alloys)?
- Our database includes 79 publications tagged with this CPC code.
- Is patent activity under CPC C22C33/08 growing?
- Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).