- 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 2/26 - After-treatment
Patent holdings for IPC class C23C 2/26
Total number of patents in this class: 936
10-year publication summary
66
|
83
|
71
|
86
|
83
|
84
|
83
|
83
|
79
|
33
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Nippon Steel Corporation | 5649 |
139 |
ArcelorMittal | 1887 |
136 |
POSCO Co., Ltd. | 1059 |
76 |
JFE Steel Corporation | 6067 |
75 |
POSCO | 2222 |
69 |
ThyssenKrupp Steel Europe AG | 924 |
47 |
ArcelorMittal Investigacion y Desarrollo SL | 209 |
28 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
21 |
Fontaine Holdings NV | 55 |
18 |
Nisshin Steel Co., Ltd. | 401 |
18 |
ArcelorMittal France | 102 |
17 |
Voestalpine Stahl GmbH | 311 |
15 |
Tata Steel Ijmuiden B.V. | 283 |
14 |
ThyssenKrupp AG | 3086 |
12 |
Salzgitter Flachstahl GmbH | 155 |
10 |
Hyundai Steel Company | 310 |
9 |
Henkel AG & Co. KGaA | 10129 |
7 |
JFE Galvanizing & Coating Co., Ltd. | 31 |
7 |
Tata Steel Nederland Technology BV | 143 |
6 |
Illinois Tool Works Inc. | 11152 |
5 |
Other owners | 207 |