- 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 22/86 - Regeneration of coating baths
Patent holdings for IPC class C23C 22/86
Total number of patents in this class: 29
10-year publication summary
3
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4
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3
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3
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3
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5
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1
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0
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0
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0
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2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
PPG Industries Ohio, Inc. | 3430 |
8 |
Henkel AG & Co. KGaA | 10129 |
7 |
PRC-DeSoto International, Inc. | 567 |
2 |
Nippon Steel Corporation | 5649 |
2 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
Chemetall GmbH | 382 |
1 |
DIPSOL Chemicals Co., Ltd. | 57 |
1 |
Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2487 |
1 |
Nihon Parkerizing Co., Ltd. | 274 |
1 |
Nippon Paint Surf Chemicals Co., Ltd. | 82 |
1 |
Tenova S.p.A. | 150 |
1 |
Veolia Water Solutions & Technologies Support | 547 |
1 |
Durr Systems AG | 323 |
1 |
Bergsskolan Kompetensutveckling Aktiebolag | 1 |
1 |
Other owners | 0 |