- 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: 1584
10-year publication summary
|
158
|
169
|
185
|
178
|
168
|
123
|
105
|
108
|
112
|
77
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6809 |
317 |
| Nippon Steel Corporation | 6203 |
291 |
| POSCO Co., Ltd. | 1558 |
78 |
| POSCO | 2188 |
75 |
| ArcelorMittal | 2271 |
66 |
| Baoshan Iron & Steel Co., Ltd. | 959 |
45 |
| Aperam | 118 |
19 |
| United States Steel Corporation | 174 |
18 |
| Nanjing Iron&Steel Co.,Ltd. | 163 |
18 |
| Kobe Steel, Ltd. | 870 |
16 |
| TDK Corporation | 6702 |
14 |
| ThyssenKrupp Steel Europe AG | 952 |
14 |
| Dai Nippon Printing Co., Ltd. | 4071 |
11 |
| Höganäs AB | 308 |
11 |
| Hitachi Metals, Ltd. | 1985 |
10 |
| Denso Corporation | 24223 |
9 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2877 |
9 |
| Nisshin Steel Co., Ltd. | 394 |
9 |
| Salzgitter Flachstahl GmbH | 158 |
8 |
| ThyssenKrupp AG | 3276 |
8 |
| Other owners | 538 |