- 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: 1354
10-year publication summary
113
|
96
|
108
|
133
|
93
|
83
|
104
|
88
|
106
|
61
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
JFE Steel Corporation | 6806 |
319 |
Nippon Steel Corporation | 6195 |
200 |
ArcelorMittal | 2254 |
184 |
POSCO Co., Ltd. | 1558 |
107 |
POSCO | 2188 |
44 |
ThyssenKrupp Steel Europe AG | 952 |
44 |
Nippon Steel & Sumitomo Metal Corporation | 1988 |
39 |
Fontaine Holdings NV | 59 |
25 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2876 |
21 |
Voestalpine Stahl GmbH | 354 |
21 |
Hyundai Steel Company | 411 |
16 |
Baoshan Iron & Steel Co., Ltd. | 960 |
15 |
ArcelorMittal Investigacion y Desarrollo SL | 209 |
14 |
Tata Steel Ijmuiden B.V. | 305 |
14 |
ThyssenKrupp AG | 3273 |
14 |
Salzgitter Flachstahl GmbH | 158 |
12 |
ArcelorMittal France | 86 |
10 |
BlueScope Steel Limited | 212 |
10 |
Kobe Steel, Ltd. | 870 |
9 |
Tata Steel Nederland Technology BV | 151 |
7 |
Other owners | 229 |