- 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 22/82 - After-treatment
Patent holdings for IPC class C23C 22/82
Total number of patents in this class: 176
10-year publication summary
17
|
23
|
18
|
16
|
19
|
24
|
19
|
15
|
12
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
ArcelorMittal | 1887 |
14 |
JFE Steel Corporation | 6067 |
14 |
Chemetall GmbH | 382 |
10 |
Nippon Steel Corporation | 5649 |
10 |
PPG Industries Ohio, Inc. | 3430 |
6 |
Henkel AG & Co. KGaA | 10129 |
5 |
POSCO Co., Ltd. | 1059 |
5 |
Novelis Inc. | 656 |
4 |
Voestalpine Stahl GmbH | 311 |
4 |
The Boeing Company | 19843 |
3 |
Atotech Deutschland GmbH | 586 |
3 |
Nippon Paint Surf Chemicals Co., Ltd. | 82 |
3 |
ThyssenKrupp AG | 3086 |
3 |
Hewlett-Packard Development Company, L.P. | 28538 |
2 |
Applied Materials, Inc. | 16587 |
2 |
C3 International, LLC | 9 |
2 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
2 |
Keronite International Limited | 16 |
2 |
POSCO | 2222 |
2 |
ThyssenKrupp Rasselstein GmbH | 72 |
2 |
Other owners | 78 |