- All sections
- B - Performing operationstransporting
- B22D - Casting of metalscasting of other substances by the same processes or devices
- B22D 21/04 - Casting aluminium or magnesium
Patent holdings for IPC class B22D 21/04
Total number of patents in this class: 396
10-year publication summary
|
34
|
31
|
25
|
24
|
17
|
24
|
22
|
19
|
18
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Korea Institute of Industrial Technology | 1015 |
16 |
| Terves, LLC | 54 |
12 |
| Alcoa Inc. | 282 |
11 |
| Novelis Inc. | 763 |
11 |
| Alcoa USA Corp. | 199 |
10 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2879 |
10 |
| Nippon Light Metal Company, Ltd. | 672 |
10 |
| Novelis Inc. | 112 |
10 |
| Sumitomo Electric Industries, Ltd. | 15659 |
9 |
| Korea Institute of Machinery & Materials | 753 |
8 |
| Nikkei MC Aluminium Co., Ltd. | 25 |
8 |
| UACJ Corporation | 705 |
8 |
| Korea Institute of Materials Science | 226 |
8 |
| National University Corporation Kumamoto University | 392 |
7 |
| Pyrotek, Inc. | 200 |
6 |
| Mazda Motor Corporation | 3187 |
5 |
| BYD Company Limited | 5207 |
5 |
| GM Global Technology Operations LLC | 15192 |
4 |
| Arconic Inc. | 243 |
4 |
| Hitachi Metals, Ltd. | 1970 |
3 |
| Other owners | 231 |