- 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: 7540
10-year publication summary
|
500
|
580
|
598
|
631
|
658
|
551
|
738
|
742
|
783
|
608
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6992 |
1390 |
| Nippon Steel Corporation | 6405 |
1132 |
| ArcelorMittal | 2344 |
690 |
| POSCO Co., Ltd. | 1576 |
658 |
| POSCO | 2178 |
383 |
| Baoshan Iron & Steel Co., Ltd. | 969 |
330 |
| ThyssenKrupp Steel Europe AG | 961 |
160 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2881 |
114 |
| Hyundai Steel Company | 446 |
109 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
108 |
| NIPPON STEEL Stainless Steel Corporation | 282 |
81 |
| Voestalpine Stahl GmbH | 362 |
73 |
| ThyssenKrupp AG | 3317 |
69 |
| TDK Corporation | 6878 |
66 |
| Tata Steel Ijmuiden B.V. | 310 |
64 |
| Salzgitter Flachstahl GmbH | 159 |
63 |
| Nanjing Iron&Steel Co.,Ltd. | 166 |
62 |
| Daido Steel Co., Ltd. | 272 |
55 |
| Kobe Steel, Ltd. | 883 |
47 |
| Proterial, Ltd. | 872 |
36 |
| Other owners | 1850 |