- 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 2/12 - Aluminium or alloys based thereon
Patent holdings for IPC class C23C 2/12
Total number of patents in this class: 1008
10-year publication summary
60
|
66
|
85
|
81
|
115
|
105
|
105
|
104
|
101
|
40
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
ArcelorMittal | 1887 |
195 |
Nippon Steel Corporation | 5649 |
151 |
JFE Steel Corporation | 6067 |
81 |
POSCO Co., Ltd. | 1059 |
76 |
POSCO | 2222 |
62 |
ThyssenKrupp Steel Europe AG | 924 |
53 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
38 |
BlueScope Steel Limited | 223 |
26 |
ThyssenKrupp AG | 3086 |
20 |
Baoshan Iron & Steel Co., Ltd. | 832 |
18 |
Hyundai Steel Company | 310 |
18 |
JFE Galvanizing & Coating Co., Ltd. | 31 |
16 |
Nisshin Steel Co., Ltd. | 401 |
16 |
ArcelorMittal France | 102 |
14 |
Salzgitter Flachstahl GmbH | 155 |
13 |
ArcelorMittal Investigacion y Desarrollo SL | 209 |
11 |
Cleveland-Cliffs Steel Properties Inc. | 56 |
11 |
Tata Steel Ijmuiden B.V. | 283 |
10 |
Nippon Steel Nisshin Co., Ltd. | 106 |
7 |
Nippon Steel Coated Sheet Corporation | 26 |
7 |
Other owners | 165 |