- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
Patent holdings for IPC class C22C 38/06
Total number of patents in this class: 7494
10-year publication summary
|
500
|
580
|
598
|
631
|
658
|
551
|
738
|
742
|
783
|
564
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6935 |
1377 |
| Nippon Steel Corporation | 6344 |
1128 |
| ArcelorMittal | 2324 |
680 |
| POSCO Co., Ltd. | 1572 |
654 |
| POSCO | 2181 |
383 |
| Baoshan Iron & Steel Co., Ltd. | 966 |
329 |
| ThyssenKrupp Steel Europe AG | 958 |
159 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2877 |
114 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
108 |
| Hyundai Steel Company | 439 |
106 |
| NIPPON STEEL Stainless Steel Corporation | 282 |
81 |
| Voestalpine Stahl GmbH | 359 |
73 |
| ThyssenKrupp AG | 3310 |
69 |
| TDK Corporation | 6839 |
66 |
| Tata Steel Ijmuiden B.V. | 311 |
64 |
| Salzgitter Flachstahl GmbH | 159 |
63 |
| Nanjing Iron&Steel Co.,Ltd. | 166 |
62 |
| Daido Steel Co., Ltd. | 271 |
54 |
| Kobe Steel, Ltd. | 881 |
47 |
| Proterial, Ltd. | 866 |
36 |
| Other owners | 1841 |