- All sections
- C - Chemistrymetallurgy
- C23C - Coating metallic materialcoating material with metallic materialsurface treatment of metallic material by diffusion into the surface, by chemical conversion or substitutioncoating 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: 1470
10-year publication summary
|
96
|
108
|
133
|
95
|
85
|
113
|
96
|
114
|
111
|
45
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7362 |
347 |
| Nippon Steel Corporation | 6703 |
222 |
| ArcelorMittal | 2532 |
202 |
| POSCO Co., Ltd. | 1665 |
125 |
| ThyssenKrupp Steel Europe AG | 984 |
50 |
| POSCO | 2155 |
45 |
| Nippon Steel & Sumitomo Metal Corporation | 1985 |
39 |
| Fontaine Holdings NV | 60 |
25 |
| Voestalpine Stahl GmbH | 384 |
24 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2835 |
21 |
| Baoshan Iron & Steel Co., Ltd. | 1078 |
19 |
| Hyundai Steel Company | 502 |
19 |
| Tata Steel Ijmuiden B.V. | 319 |
16 |
| Salzgitter Flachstahl GmbH | 163 |
14 |
| ThyssenKrupp AG | 3454 |
14 |
| ArcelorMittal Investigacion y Desarrollo SL | 208 |
13 |
| ArcelorMittal France | 73 |
10 |
| BlueScope Steel Limited | 217 |
10 |
| Kobe Steel, Ltd. | 895 |
9 |
| Fives Stein | 106 |
7 |
| Other owners | 239 |