- 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: 330
10-year publication summary
|
32
|
31
|
29
|
25
|
25
|
16
|
27
|
18
|
14
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6843 |
42 |
| JFE Steel Corporation | 7508 |
36 |
| ArcelorMittal | 2663 |
18 |
| Toyo Kohan Co., Ltd. | 431 |
11 |
| POSCO Co., Ltd. | 2006 |
10 |
| Tata Steel Ijmuiden B.V. | 325 |
7 |
| Vallourec Oil and Gas France | 459 |
7 |
| POSCO | 2147 |
6 |
| ThyssenKrupp Steel Europe AG | 989 |
6 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
5 |
| Voestalpine Stahl GmbH | 389 |
5 |
| The Boeing Company | 20160 |
4 |
| Hutchinson Technology Incorporated | 303 |
4 |
| United States Steel Corporation | 172 |
4 |
| Jiangsu Shagang Group Co., Ltd. | 112 |
4 |
| Institute of Research of Iron and Steel, Jiangsu Province/sha-steel, Co. Ltd | 77 |
4 |
| Zhangjiagang Yangtze River Cold Rolled Plate Co. Ltd | 18 |
4 |
| Honda Motor Co., Ltd. | 26008 |
3 |
| Robert Bosch GmbH | 44128 |
3 |
| HARTING KGaA | 9 |
3 |
| Other owners | 144 |