High strength 6XXX aluminum alloys and methods of making the same
US-11920229-B2 · Mar 5, 2024 · US
Modified aluminium-silicon alloys
Modified aluminium-silicon 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 | C22C21/04 |
| Official title | Modified aluminium-silicon alloys |
| Display label | Modified aluminium-silicon alloys |
| Total patents | 291 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 28 |
| 2017 | 33 |
| 2018 | 30 |
| 2019 | 37 |
| 2020 | 22 |
| 2021 | 31 |
| 2022 | 28 |
| 2023 | 25 |
| 2024 | 17 |
| 2025 | 17 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Aluminum alloy cladding material for heat exchanger
US-2017321304-A1 · Nov 9, 2017 · US
Aluminum alloy cladding material for heat exchanger
US-2017321974-A1 · Nov 9, 2017 · US
Hypereutectic Aluminum-Silicon Cast Alloys Having Unique Microstructure
US-2017298479-A1 · Oct 19, 2017 · US
Solid State Grain Alignment Of Permanent Magets in Near-Final Shape
US-2017283893-A1 · Oct 5, 2017 · US
Automobile body part
US-9731772-B2 · Aug 15, 2017 · US
Aluminum alloy plate having excellent moldability and bake finish hardening properties
US-2017175231-A1 · Jun 22, 2017 · US
Method and apparatus for thermally treating an aluminium workpiece and aluminium workpiece
US-9677161-B2 · Jun 13, 2017 · US
Aluminum alloy suitable for high pressure die casting
US-9677158-B2 · Jun 13, 2017 · US
Electroactive Materials for Metal-Ion Batteries
US-2017133674-A1 · May 11, 2017 · US
Process for warm forming a hardened aluminum alloy
US-2017101704-A1 · Apr 13, 2017 · US
Aluminum alloy wire
US-2016326618-A1 · Nov 10, 2016 · US
High elastic aluminum alloy and method for producing the same
US-2016319398-A1 · Nov 3, 2016 · US
Aluminum plated steel sheet having excellent corrosion resistance with respect to alcohol or mixed gasoline of same and appearance
US-2016312342-A1 · Oct 27, 2016 · US
Aluminum alloy for continuous casting and method for producing the same
US-9469888-B2 · Oct 18, 2016 · US
Aluminum Alloy Heat Exchanger
US-2016298914-A1 · Oct 13, 2016 · US
Aluminum alloy
US-2016289802-A1 · Oct 6, 2016 · US
HIGH PERFORMANCE AlSiMgCu CASTING ALLOY
US-2016281195-A1 · Sep 29, 2016 · US
Aluminum alloy wire
US-9422612-B2 · Aug 23, 2016 · US
Methods for relieving stress in an additively manufactured alloy body
US-2016228950-A1 · Aug 11, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22C21/04?
- CPC C22C21/04 is the Cooperative Patent Classification code for “Modified aluminium-silicon alloys.”
- How many patents are filed under CPC C22C21/04 (Modified aluminium-silicon alloys)?
- Our database includes 291 publications tagged with this CPC code.
- Is patent activity under CPC C22C21/04 growing?
- Publication counts under this code: 17 in 2024 vs 17 in 2025 (latest complete years).