- All sections
- C - Chemistry; metallurgy
- 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: 331
10-year publication summary
|
33
|
23
|
31
|
35
|
29
|
22
|
17
|
7
|
11
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Constellium Issoire | 208 |
45 |
| Novelis Inc. | 656 |
26 |
| UACJ Corporation | 631 |
14 |
| Guizhou Hua-ke Aluminum-materials Engineering Research Co., Ltd. | 15 |
12 |
| Novelis Koblenz GmbH | 93 |
8 |
| Mitsubishi Materials Corporation | 2378 |
7 |
| Alcoa Inc. | 323 |
6 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
6 |
| The Boeing Company | 19843 |
5 |
| Constellium France | 27 |
5 |
| UT-Battelle, LLC | 1333 |
5 |
| Arconic Technologies LLC | 219 |
5 |
| FCA US LLC | 2755 |
4 |
| Aleris Aluminum Koblenz GmbH | 42 |
4 |
| Aleris Rolled Products Germany GmbH | 62 |
4 |
| Arconic Inc. | 259 |
4 |
| NEMAK USA, Inc. | 5 |
4 |
| Sumitomo Electric Industries, Ltd. | 14131 |
3 |
| Yazaki Corporation | 6282 |
3 |
| The Furukawa Electric Co., Ltd. | 3486 |
3 |
| Other owners | 158 |