- 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 2/12 - Aluminium or alloys based thereon
Patent holdings for IPC class C23C 2/12
Total number of patents in this class: 1158
10-year publication summary
|
62
|
75
|
67
|
105
|
102
|
101
|
99
|
101
|
109
|
73
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ArcelorMittal | 2293 |
227 |
| Nippon Steel Corporation | 6274 |
181 |
| POSCO Co., Ltd. | 1568 |
112 |
| JFE Steel Corporation | 6849 |
92 |
| ThyssenKrupp Steel Europe AG | 956 |
68 |
| POSCO | 2186 |
64 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
38 |
| BlueScope Steel Limited | 210 |
27 |
| Baoshan Iron & Steel Co., Ltd. | 963 |
23 |
| Hyundai Steel Company | 430 |
22 |
| ThyssenKrupp AG | 3291 |
20 |
| JFE Galvanizing & Coating Co., Ltd. | 32 |
17 |
| Nisshin Steel Co., Ltd. | 394 |
15 |
| ArcelorMittal France | 94 |
14 |
| Salzgitter Flachstahl GmbH | 159 |
13 |
| Tata Steel Ijmuiden B.V. | 311 |
13 |
| Cleveland-Cliffs Steel Properties Inc. | 75 |
13 |
| ArcelorMittal Investigacion y Desarrollo SL | 209 |
11 |
| Nippon Steel Coated Sheet Corporation | 30 |
9 |
| AK Steel Properties, Inc. | 75 |
6 |
| Other owners | 173 |