- 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: 7424
10-year publication summary
|
556
|
635
|
650
|
655
|
681
|
582
|
767
|
773
|
796
|
522
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6833 |
1362 |
| Nippon Steel Corporation | 6231 |
1117 |
| ArcelorMittal | 2280 |
659 |
| POSCO Co., Ltd. | 1564 |
647 |
| POSCO | 2187 |
383 |
| Baoshan Iron & Steel Co., Ltd. | 962 |
328 |
| ThyssenKrupp Steel Europe AG | 954 |
159 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2875 |
114 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
108 |
| Hyundai Steel Company | 426 |
105 |
| NIPPON STEEL Stainless Steel Corporation | 287 |
81 |
| Voestalpine Stahl GmbH | 355 |
72 |
| ThyssenKrupp AG | 3281 |
69 |
| TDK Corporation | 6720 |
66 |
| Tata Steel Ijmuiden B.V. | 308 |
64 |
| Salzgitter Flachstahl GmbH | 159 |
63 |
| Nanjing Iron&Steel Co.,Ltd. | 163 |
61 |
| Daido Steel Co., Ltd. | 270 |
54 |
| Kobe Steel, Ltd. | 872 |
47 |
| Proterial, Ltd. | 843 |
36 |
| Other owners | 1829 |