- 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 22/83 - Chemical after-treatment
Patent holdings for IPC class C23C 22/83
Total number of patents in this class: 402
10-year publication summary
34
|
36
|
23
|
39
|
20
|
32
|
37
|
10
|
10
|
1
|
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 |
43 |
Chemetall GmbH | 382 |
43 |
PPG Industries Ohio, Inc. | 3430 |
32 |
PRC-DeSoto International, Inc. | 567 |
20 |
Atotech Deutschland GmbH | 586 |
16 |
Nihon Parkerizing Co., Ltd. | 274 |
13 |
JFE Steel Corporation | 6067 |
12 |
Rhodia Operations | 1645 |
7 |
Mecaprotec Industries | 10 |
5 |
BASF SE | 19740 |
4 |
Hamilton Sundstrand Corporation | 4525 |
4 |
DIPSOL Chemicals Co., Ltd. | 57 |
4 |
Nippon Paint Surf Chemicals Co., Ltd. | 82 |
4 |
Nippon Steel Corporation | 5649 |
4 |
Taisei Plas Co., Ltd. | 48 |
4 |
Rtx Corporation | 8674 |
4 |
The Boeing Company | 19843 |
3 |
a et a Mader | 26 |
3 |
ArcelorMittal | 1887 |
3 |
C3 International, LLC | 9 |
3 |
Other owners | 171 |