- All sections
- C - Chemistry; metallurgy
- C22C - Alloys
- C22C 21/00 - Alloys based on aluminium
Patent holdings for IPC class C22C 21/00
Total number of patents in this class: 2814
10-year publication summary
|
234
|
218
|
225
|
223
|
219
|
219
|
194
|
218
|
148
|
43
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UACJ Corporation | 631 |
254 |
| Novelis Inc. | 656 |
92 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
91 |
| The Furukawa Electric Co., Ltd. | 3486 |
82 |
| Nippon Light Metal Company, Ltd. | 645 |
82 |
| Sumitomo Electric Industries, Ltd. | 14131 |
56 |
| Denso Corporation | 23338 |
46 |
| Toyo Aluminium Kabushiki Kaisha | 357 |
44 |
| Nippon Steel Corporation | 5649 |
43 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
38 |
| AutoNetworks Technologies, Ltd. | 5809 |
38 |
| Hydro Aluminium Rolled Products GmbH | 118 |
37 |
| Mitsubishi Materials Corporation | 2378 |
35 |
| Mitsubishi Aluminum Co., Ltd. | 58 |
34 |
| Alcoa Inc. | 323 |
30 |
| Furukawa Automotive Systems Inc. | 558 |
30 |
| C-TEC Constellium Technology Center | 51 |
28 |
| Rio Tinto ALCAN International Limited | 214 |
24 |
| Novelis Koblenz GmbH | 93 |
21 |
| MA Aluminum Corporation | 45 |
21 |
| Other owners | 1688 |