- All sections
- C - Chemistry; metallurgy
- C22C - Alloys
- C22C 21/18 - Alloys based on aluminium with copper as the next major constituent with zinc
Patent holdings for IPC class C22C 21/18
Total number of patents in this class: 163
10-year publication summary
|
13
|
30
|
14
|
26
|
18
|
14
|
26
|
10
|
10
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Constellium Issoire | 208 |
38 |
| Arconic Technologies LLC | 219 |
12 |
| Novelis Inc. | 656 |
6 |
| UACJ Corporation | 631 |
5 |
| The Boeing Company | 19843 |
4 |
| UT-Battelle, LLC | 1333 |
4 |
| Novelis Koblenz GmbH | 93 |
4 |
| Aleris Rolled Products Germany GmbH | 62 |
3 |
| Arconic Inc. | 259 |
3 |
| Howmet Aerospace Inc. | 367 |
3 |
| Toyota Motor Corporation | 28582 |
2 |
| Airbus S.A.S. | 819 |
2 |
| Hyundai Motor Company | 19021 |
2 |
| FCA US LLC | 2755 |
2 |
| Aleris Aluminum Koblenz GmbH | 42 |
2 |
| ArcelorMittal | 1887 |
2 |
| Federal-Mogul Wiesbaden GmbH | 103 |
2 |
| Kaiser Aluminum Fabricated Products, LLC | 33 |
2 |
| NHK Spring Co., Ltd. | 1657 |
2 |
| Spirit AeroSystems, Inc. | 258 |
2 |
| Other owners | 61 |