- 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 2/40 - Plates; Strips
Patent holdings for IPC class C23C 2/40
Total number of patents in this class: 1623
10-year publication summary
90
|
123
|
153
|
166
|
208
|
196
|
158
|
187
|
166
|
57
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
JFE Steel Corporation | 6067 |
342 |
Nippon Steel Corporation | 5649 |
230 |
ArcelorMittal | 1887 |
220 |
POSCO Co., Ltd. | 1059 |
150 |
POSCO | 2222 |
122 |
ThyssenKrupp Steel Europe AG | 924 |
78 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
41 |
Baoshan Iron & Steel Co., Ltd. | 832 |
34 |
Tata Steel Ijmuiden B.V. | 283 |
30 |
ThyssenKrupp AG | 3086 |
25 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
24 |
Salzgitter Flachstahl GmbH | 155 |
21 |
Hyundai Steel Company | 310 |
19 |
Nisshin Steel Co., Ltd. | 401 |
16 |
Voestalpine Stahl GmbH | 311 |
13 |
BlueScope Steel Limited | 223 |
11 |
Kobe Steel, Ltd. | 912 |
10 |
Tata Steel Nederland Technology BV | 143 |
10 |
Nippon Steel Nisshin Co., Ltd. | 106 |
10 |
ArcelorMittal Investigacion y Desarrollo SL | 209 |
9 |
Other owners | 208 |