- 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 22/03 - 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 non-aqueous solutions containing phosphorus compounds
Patent holdings for IPC class C23C 22/03
Total number of patents in this class: 43
10-year publication summary
2
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3
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0
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3
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3
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2
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5
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1
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4
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2
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2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Nippon Steel Corporation | 5649 |
5 |
Novelis Inc. | 656 |
4 |
Quaker Chemical Corporation | 212 |
2 |
Surfactis Technologies | 10 |
2 |
Toto Ltd. | 1096 |
2 |
Universite de Franche-comte | 178 |
2 |
Sumitomo Electric Industries, Ltd. | 14131 |
1 |
FUJIFILM Corporation | 27102 |
1 |
Sumitomo Wiring Systems, Ltd. | 9367 |
1 |
PPG Industries Ohio, Inc. | 3430 |
1 |
Northwestern University | 3112 |
1 |
Aperam | 104 |
1 |
AutoNetworks Technologies, Ltd. | 5809 |
1 |
Biological Dynamics, Inc. | 49 |
1 |
Höganäs AB | 337 |
1 |
IFP | 156 |
1 |
Johnson Matthey Public Limited Company | 1852 |
1 |
Kyushu University, National University Corporation | 1572 |
1 |
MacDermid Enthone Inc. | 237 |
1 |
Novelis Inc. | 130 |
1 |
Other owners | 12 |