- 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: 1738
10-year publication summary
|
123
|
153
|
166
|
208
|
196
|
158
|
188
|
171
|
168
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6527 |
352 |
| Nippon Steel Corporation | 5982 |
253 |
| ArcelorMittal | 2047 |
228 |
| POSCO Co., Ltd. | 1290 |
170 |
| POSCO | 2204 |
125 |
| ThyssenKrupp Steel Europe AG | 953 |
89 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
41 |
| Baoshan Iron & Steel Co., Ltd. | 888 |
37 |
| Tata Steel Ijmuiden B.V. | 300 |
30 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2906 |
26 |
| ThyssenKrupp AG | 3207 |
24 |
| Hyundai Steel Company | 348 |
23 |
| Salzgitter Flachstahl GmbH | 156 |
23 |
| Voestalpine Stahl GmbH | 340 |
20 |
| Nisshin Steel Co., Ltd. | 398 |
16 |
| BlueScope Steel Limited | 216 |
12 |
| Tata Steel Nederland Technology BV | 144 |
10 |
| Nippon Steel Nisshin Co., Ltd. | 103 |
10 |
| ArcelorMittal Investigacion y Desarrollo SL | 209 |
9 |
| Kobe Steel, Ltd. | 862 |
9 |
| Other owners | 231 |