- 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: 8195
10-year publication summary
|
635
|
650
|
655
|
683
|
582
|
769
|
775
|
811
|
766
|
536
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7483 |
1488 |
| Nippon Steel Corporation | 6839 |
1190 |
| POSCO Co., Ltd. | 1997 |
813 |
| ArcelorMittal | 2656 |
809 |
| POSCO | 2147 |
386 |
| Baoshan Iron & Steel Co., Ltd. | 1098 |
378 |
| ThyssenKrupp Steel Europe AG | 989 |
165 |
| Hyundai Steel Company | 528 |
150 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
108 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2830 |
104 |
| NIPPON STEEL Stainless Steel Corporation | 277 |
81 |
| Voestalpine Stahl GmbH | 385 |
78 |
| TDK Corporation | 6845 |
69 |
| Nanjing Iron&Steel Co.,Ltd. | 186 |
69 |
| Tata Steel Ijmuiden B.V. | 324 |
68 |
| Salzgitter Flachstahl GmbH | 163 |
65 |
| ThyssenKrupp AG | 3438 |
62 |
| Daido Steel Co., Ltd. | 284 |
58 |
| Kobe Steel, Ltd. | 899 |
50 |
| Jiangsu Shagang Group Co., Ltd. | 112 |
37 |
| Other owners | 1967 |