- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 21/08 - Alloys based on aluminium with magnesium as the next major constituent with silicon
Patent holdings for IPC class C22C 21/08
Total number of patents in this class: 944
10-year publication summary
|
94
|
83
|
81
|
71
|
53
|
50
|
69
|
51
|
67
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Novelis Inc. | 785 |
132 |
| UACJ Corporation | 719 |
44 |
| Arconic Technologies LLC | 240 |
30 |
| Constellium Neuf-brisach | 140 |
27 |
| The Furukawa Electric Co., Ltd. | 3717 |
24 |
| Hydro Aluminium Rolled Products GmbH | 115 |
17 |
| Sumitomo Electric Industries, Ltd. | 16000 |
15 |
| Nippon Light Metal Company, Ltd. | 678 |
15 |
| Norsk Hydro ASA | 250 |
15 |
| Sumitomo Wiring Systems, Ltd. | 10714 |
14 |
| AutoNetworks Technologies, Ltd. | 6883 |
14 |
| Furukawa Automotive Systems Inc. | 602 |
14 |
| Rio Tinto ALCAN International Limited | 217 |
13 |
| ArcelorMittal | 2490 |
12 |
| Constellium Issoire | 223 |
12 |
| Constellium SINGEN GmbH | 103 |
12 |
| Novelis Koblenz GmbH | 86 |
12 |
| GM Global Technology Operations LLC | 15666 |
11 |
| Speira GmbH | 127 |
11 |
| Alcoa Inc. | 270 |
10 |
| Other owners | 490 |