- 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: 336
10-year publication summary
|
22
|
28
|
29
|
25
|
19
|
15
|
7
|
12
|
17
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Constellium Issoire | 219 |
44 |
| Novelis Inc. | 762 |
27 |
| UACJ Corporation | 704 |
13 |
| Guizhou Hua-ke Aluminum-materials Engineering Research Co., Ltd. | 15 |
12 |
| Mitsubishi Materials Corporation | 2469 |
7 |
| Novelis Koblenz GmbH | 85 |
7 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2879 |
6 |
| The Boeing Company | 20131 |
5 |
| Alcoa Inc. | 282 |
5 |
| Constellium France | 24 |
5 |
| UT-Battelle, LLC | 1468 |
5 |
| FCA US LLC | 3172 |
4 |
| Aleris Aluminum Koblenz GmbH | 30 |
4 |
| Aleris Rolled Products Germany GmbH | 62 |
4 |
| Arconic Inc. | 243 |
4 |
| NEMAK USA, Inc. | 5 |
4 |
| Arconic Technologies LLC | 295 |
4 |
| Sumitomo Electric Industries, Ltd. | 15647 |
3 |
| Robert Bosch GmbH | 42815 |
3 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 43628 |
3 |
| Other owners | 167 |