- 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 2/40 - PlatesStrips
Patent holdings for IPC class C23C 2/40
Total number of patents in this class: 1840
10-year publication summary
|
111
|
140
|
155
|
194
|
195
|
155
|
185
|
168
|
169
|
99
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6935 |
367 |
| Nippon Steel Corporation | 6344 |
273 |
| ArcelorMittal | 2324 |
248 |
| POSCO Co., Ltd. | 1572 |
198 |
| POSCO | 2181 |
124 |
| ThyssenKrupp Steel Europe AG | 958 |
91 |
| Baoshan Iron & Steel Co., Ltd. | 966 |
42 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
41 |
| Hyundai Steel Company | 439 |
32 |
| Tata Steel Ijmuiden B.V. | 311 |
32 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2877 |
26 |
| Salzgitter Flachstahl GmbH | 159 |
24 |
| ThyssenKrupp AG | 3310 |
24 |
| Voestalpine Stahl GmbH | 359 |
21 |
| Nisshin Steel Co., Ltd. | 394 |
15 |
| BlueScope Steel Limited | 208 |
12 |
| Tata Steel Nederland Technology BV | 151 |
11 |
| ArcelorMittal Investigacion y Desarrollo SL | 209 |
9 |
| Fives Stein | 105 |
9 |
| Kobe Steel, Ltd. | 881 |
9 |
| Other owners | 232 |