- 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 22/60 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH > 8
Patent holdings for IPC class C23C 22/60
Total number of patents in this class: 146
10-year publication summary
20
|
13
|
13
|
14
|
10
|
6
|
5
|
4
|
2
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Henkel AG & Co. KGaA | 10129 |
26 |
JFE Steel Corporation | 6067 |
12 |
Nihon Parkerizing Co., Ltd. | 274 |
10 |
Nippon Steel Corporation | 5649 |
7 |
Chemetall GmbH | 382 |
5 |
BASF SE | 19740 |
3 |
PPG Industries Ohio, Inc. | 3430 |
3 |
ArcelorMittal Investigacion y Desarrollo SL | 209 |
3 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
3 |
Agency for Science, Technology and Research | 3512 |
2 |
Arteco N.V. | 30 |
2 |
Kansai Paint Co., Ltd. | 659 |
2 |
Latitude 18, Inc. | 25 |
2 |
Nisshin Steel Co., Ltd. | 401 |
2 |
Saint-Gobain Performance Plastics Corporation | 1028 |
2 |
Toyo Kohan Co., Ltd. | 413 |
2 |
Nippon Steel Coated Sheet Corporation | 26 |
2 |
China Morefound Technology Ltd., Shenzhen | 3 |
2 |
Shenzhen Changhongtai Technology Co., Ltd. | 16 |
2 |
LG Chem, Ltd. | 17205 |
1 |
Other owners | 53 |