- All sections
- C - Chemistry; metallurgy
- 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: 6364
10-year publication summary
516
|
556
|
635
|
650
|
655
|
680
|
581
|
764
|
747
|
248
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
JFE Steel Corporation | 6067 |
1232 |
Nippon Steel Corporation | 5649 |
988 |
ArcelorMittal | 1887 |
518 |
POSCO Co., Ltd. | 1059 |
417 |
POSCO | 2222 |
385 |
Baoshan Iron & Steel Co., Ltd. | 832 |
274 |
ThyssenKrupp Steel Europe AG | 924 |
135 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
118 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
108 |
NIPPON STEEL Stainless Steel Corporation | 254 |
73 |
ThyssenKrupp AG | 3086 |
72 |
TDK Corporation | 6306 |
61 |
Salzgitter Flachstahl GmbH | 155 |
60 |
Tata Steel Ijmuiden B.V. | 283 |
59 |
Voestalpine Stahl GmbH | 311 |
58 |
Hyundai Steel Company | 310 |
52 |
Kobe Steel, Ltd. | 912 |
52 |
Nanjing Iron&Steel Co.,Ltd. | 135 |
46 |
Daido Steel Co., Ltd. | 237 |
45 |
Hitachi Metals, Ltd. | 2175 |
32 |
Other owners | 1579 |