- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 21/04 - Modified aluminium-silicon alloys
Patent holdings for IPC class C22C 21/04
Total number of patents in this class: 348
10-year publication summary
|
40
|
31
|
31
|
23
|
14
|
16
|
21
|
10
|
17
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Novelis Inc. | 784 |
21 |
| Constellium Neuf-brisach | 140 |
16 |
| UACJ Corporation | 741 |
10 |
| ArcelorMittal | 2725 |
8 |
| Federal-Mogul Nurnberg GmbH | 130 |
8 |
| Nippon Light Metal Company, Ltd. | 686 |
8 |
| The Furukawa Electric Co., Ltd. | 3692 |
7 |
| Furukawa Automotive Systems Inc. | 606 |
7 |
| Rio Tinto ALCAN International Limited | 218 |
7 |
| Aleris Rolled Products Germany GmbH | 61 |
6 |
| KSM Castings Group GmbH | 70 |
6 |
| Novelis Koblenz GmbH | 85 |
6 |
| GM Global Technology Operations LLC | 16219 |
5 |
| Hydro Aluminium Rolled Products GmbH | 113 |
5 |
| Nexeon Limited | 183 |
5 |
| Rheinfelden Alloys GmbH & Co. KG | 17 |
5 |
| Hyundai Motor Company | 24898 |
4 |
| Alcoa USA Corp. | 202 |
4 |
| Aleris Aluminum Duffel BVBA | 28 |
4 |
| AMAG rolling GmbH | 43 |
4 |
| Other owners | 202 |