- All sections
- C - Chemistry; metallurgy
- C23C - Coating metallic material; coating material with metallic material; surface treatment of metallic material by diffusion into the surface, by chemical conversion or substitution; coating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general
- C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas
Patent holdings for IPC class C23C 2/02
Total number of patents in this class: 1191
10-year publication summary
|
110
|
113
|
96
|
108
|
132
|
91
|
79
|
87
|
64
|
22
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6067 |
289 |
| Nippon Steel Corporation | 5649 |
166 |
| ArcelorMittal | 1887 |
159 |
| POSCO Co., Ltd. | 1059 |
72 |
| ThyssenKrupp Steel Europe AG | 924 |
41 |
| POSCO | 2222 |
40 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
39 |
| Fontaine Holdings NV | 55 |
22 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
20 |
| Voestalpine Stahl GmbH | 311 |
19 |
| ArcelorMittal Investigacion y Desarrollo SL | 209 |
14 |
| Tata Steel Ijmuiden B.V. | 283 |
14 |
| ThyssenKrupp AG | 3086 |
14 |
| ArcelorMittal France | 102 |
12 |
| Salzgitter Flachstahl GmbH | 155 |
12 |
| Hyundai Steel Company | 310 |
10 |
| BlueScope Steel Limited | 223 |
9 |
| Kobe Steel, Ltd. | 912 |
9 |
| Baoshan Iron & Steel Co., Ltd. | 832 |
8 |
| Fives Stein | 96 |
6 |
| Other owners | 216 |