- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 21/00 - Alloys based on aluminium
Patent holdings for IPC class C22C 21/00
Total number of patents in this class: 3059
10-year publication summary
|
205
|
207
|
203
|
202
|
206
|
184
|
209
|
148
|
150
|
158
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UACJ Corporation | 707 |
272 |
| Novelis Inc. | 769 |
105 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
85 |
| The Furukawa Electric Co., Ltd. | 3703 |
83 |
| Nippon Light Metal Company, Ltd. | 672 |
79 |
| Nippon Steel Corporation | 6514 |
69 |
| Sumitomo Electric Industries, Ltd. | 15789 |
56 |
| Toyo Aluminium Kabushiki Kaisha | 344 |
46 |
| Denso Corporation | 24797 |
45 |
| Mitsubishi Materials Corporation | 2470 |
40 |
| Sumitomo Wiring Systems, Ltd. | 10571 |
38 |
| AutoNetworks Technologies, Ltd. | 6755 |
38 |
| Hydro Aluminium Rolled Products GmbH | 117 |
36 |
| C-TEC Constellium Technology Center | 62 |
33 |
| Mitsubishi Aluminum Co., Ltd. | 56 |
33 |
| Furukawa Automotive Systems Inc. | 594 |
31 |
| Alcoa Inc. | 276 |
28 |
| Arconic Technologies LLC | 239 |
25 |
| Rio Tinto ALCAN International Limited | 217 |
23 |
| MA Aluminum Corporation | 46 |
23 |
| Other owners | 1871 |