- All sections
- C - Chemistrymetallurgy
- C25D - Processes for the electrolytic or electrophoretic production of coatingselectroformingjoining workpieces by electrolysisapparatus therefor
- C25D 5/36 - Pretreatment of metallic surfaces to be electroplated of iron or steel
Patent holdings for IPC class C25D 5/36
Total number of patents in this class: 317
10-year publication summary
|
30
|
32
|
28
|
26
|
25
|
23
|
15
|
26
|
17
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6482 |
42 |
| JFE Steel Corporation | 7054 |
32 |
| ArcelorMittal | 2396 |
18 |
| Toyo Kohan Co., Ltd. | 422 |
10 |
| POSCO | 2175 |
7 |
| POSCO Co., Ltd. | 1592 |
7 |
| Tata Steel Ijmuiden B.V. | 311 |
7 |
| Vallourec Oil and Gas France | 459 |
7 |
| ThyssenKrupp Steel Europe AG | 962 |
6 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
5 |
| Voestalpine Stahl GmbH | 365 |
5 |
| The Boeing Company | 20163 |
4 |
| Hutchinson Technology Incorporated | 310 |
4 |
| United States Steel Corporation | 174 |
4 |
| Jiangsu Shagang Group Co., Ltd. | 98 |
4 |
| Institute of Research of Iron and Steel, Jiangsu Province/sha-steel, Co. Ltd | 70 |
4 |
| Zhangjiagang Yangtze River Cold Rolled Plate Co. Ltd | 18 |
4 |
| Honda Motor Co., Ltd. | 25780 |
3 |
| Robert Bosch GmbH | 43063 |
3 |
| HARTING KGaA | 9 |
3 |
| Other owners | 138 |