- 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 2/26 - After-treatment
Patent holdings for IPC class C23C 2/26
Total number of patents in this class: 1163
10-year publication summary
|
70
|
87
|
85
|
88
|
90
|
101
|
103
|
93
|
94
|
57
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 7098 |
221 |
| ArcelorMittal | 2754 |
186 |
| POSCO Co., Ltd. | 2032 |
116 |
| JFE Steel Corporation | 7675 |
89 |
| POSCO | 2144 |
76 |
| ThyssenKrupp Steel Europe AG | 997 |
64 |
| ArcelorMittal Investigacion y Desarrollo SL | 208 |
28 |
| Fontaine Holdings NV | 63 |
23 |
| Nippon Steel & Sumitomo Metal Corporation | 1980 |
21 |
| Voestalpine Stahl GmbH | 396 |
19 |
| Nisshin Steel Co., Ltd. | 381 |
17 |
| Tata Steel Ijmuiden B.V. | 328 |
14 |
| ThyssenKrupp AG | 3333 |
12 |
| Salzgitter Flachstahl GmbH | 163 |
11 |
| Hyundai Steel Company | 550 |
10 |
| Henkel AG & Co. KGaA | 10788 |
8 |
| JFE Galvanizing & Coating Co., Ltd. | 33 |
7 |
| Nippon Steel Coated Sheet Corporation | 28 |
7 |
| ArcelorMittal France | 67 |
6 |
| Baoshan Iron & Steel Co., Ltd. | 1136 |
6 |
| Other owners | 222 |