- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 21/12 - Alloys based on aluminium with copper as the next major constituent
Patent holdings for IPC class C22C 21/12
Total number of patents in this class: 345
10-year publication summary
|
31
|
35
|
29
|
22
|
18
|
7
|
14
|
19
|
9
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Constellium Issoire | 225 |
44 |
| Novelis Inc. | 777 |
27 |
| UACJ Corporation | 732 |
13 |
| Guizhou Hua-ke Aluminum-materials Engineering Research Co., Ltd. | 15 |
12 |
| Novelis Koblenz GmbH | 84 |
9 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2830 |
7 |
| Mitsubishi Materials Corporation | 2468 |
7 |
| The Boeing Company | 20153 |
5 |
| Alcoa Inc. | 256 |
5 |
| Constellium France | 24 |
5 |
| UT-Battelle, LLC | 1511 |
5 |
| Arconic Technologies LLC | 236 |
5 |
| FCA US LLC | 3548 |
4 |
| Aleris Rolled Products Germany GmbH | 61 |
4 |
| Arconic Inc. | 234 |
4 |
| NEMAK USA, Inc. | 5 |
4 |
| Sumitomo Electric Industries, Ltd. | 16303 |
3 |
| Robert Bosch GmbH | 44094 |
3 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48214 |
3 |
| Yazaki Corporation | 7092 |
3 |
| Other owners | 173 |