- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel
Patent holdings for IPC class C22C 38/08
Total number of patents in this class: 1618
10-year publication summary
|
150
|
162
|
171
|
173
|
162
|
119
|
103
|
110
|
112
|
101
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7011 |
325 |
| Nippon Steel Corporation | 6439 |
297 |
| POSCO Co., Ltd. | 1587 |
78 |
| POSCO | 2177 |
74 |
| ArcelorMittal | 2357 |
68 |
| Baoshan Iron & Steel Co., Ltd. | 975 |
45 |
| Aperam | 127 |
22 |
| United States Steel Corporation | 173 |
18 |
| Nanjing Iron&Steel Co.,Ltd. | 168 |
18 |
| Kobe Steel, Ltd. | 880 |
16 |
| TDK Corporation | 6879 |
15 |
| ThyssenKrupp Steel Europe AG | 962 |
14 |
| Dai Nippon Printing Co., Ltd. | 4130 |
11 |
| Höganäs AB | 309 |
11 |
| Hitachi Metals, Ltd. | 1966 |
10 |
| Denso Corporation | 24652 |
9 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2884 |
9 |
| Nisshin Steel Co., Ltd. | 394 |
9 |
| Salzgitter Flachstahl GmbH | 161 |
8 |
| ThyssenKrupp AG | 3322 |
8 |
| Other owners | 553 |