- 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: 7741
10-year publication summary
|
580
|
598
|
631
|
659
|
551
|
738
|
743
|
783
|
702
|
92
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7199 |
1421 |
| Nippon Steel Corporation | 6607 |
1143 |
| ArcelorMittal | 2462 |
729 |
| POSCO Co., Ltd. | 1635 |
684 |
| POSCO | 2154 |
383 |
| Baoshan Iron & Steel Co., Ltd. | 1049 |
360 |
| ThyssenKrupp Steel Europe AG | 972 |
162 |
| Hyundai Steel Company | 473 |
120 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2855 |
112 |
| Nippon Steel & Sumitomo Metal Corporation | 1985 |
108 |
| NIPPON STEEL Stainless Steel Corporation | 277 |
81 |
| Voestalpine Stahl GmbH | 376 |
75 |
| ThyssenKrupp AG | 3402 |
69 |
| TDK Corporation | 6778 |
66 |
| Tata Steel Ijmuiden B.V. | 314 |
66 |
| Nanjing Iron&Steel Co.,Ltd. | 177 |
65 |
| Salzgitter Flachstahl GmbH | 161 |
64 |
| Daido Steel Co., Ltd. | 277 |
56 |
| Kobe Steel, Ltd. | 892 |
49 |
| Jiangsu Shagang Group Co., Ltd. | 105 |
36 |
| Other owners | 1892 |