- All sections
- C - Chemistry; metallurgy
- C22C - Alloys
- C22C 18/04 - Alloys based on zinc with aluminium as the next major constituent
Patent holdings for IPC class C22C 18/04
Total number of patents in this class: 600
10-year publication summary
|
50
|
45
|
35
|
58
|
49
|
54
|
43
|
63
|
57
|
19
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 5649 |
154 |
| JFE Steel Corporation | 6067 |
109 |
| Nisshin Steel Co., Ltd. | 401 |
44 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
31 |
| POSCO Co., Ltd. | 1059 |
27 |
| POSCO | 2222 |
20 |
| ArcelorMittal | 1887 |
15 |
| JFE Galvanizing & Coating Co., Ltd. | 31 |
11 |
| Nissan Motor Co., Ltd. | 12249 |
10 |
| Nippon Steel Nisshin Co., Ltd. | 106 |
10 |
| BlueScope Steel Limited | 223 |
8 |
| Tata Steel Ijmuiden B.V. | 283 |
7 |
| ThyssenKrupp Steel Europe AG | 924 |
6 |
| Ningbo Powerway Alloy Material Co., Ltd. | 34 |
4 |
| Sumitomo Metal Mining Co., Ltd. | 1670 |
4 |
| ArcelorMittal Investigacion y Desarrollo SL | 209 |
3 |
| Baoshan Iron & Steel Co., Ltd. | 832 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
3 |
| NOROO Coil Coatings, Co., Ltd. | 18 |
3 |
| Research Institute of Industrial Science & Technology | 378 |
3 |
| Other owners | 125 |