- 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 22/20 - Orthophosphates containing aluminium cations
Patent holdings for IPC class C23C 22/20
Total number of patents in this class: 54
10-year publication summary
2
|
3
|
6
|
7
|
2
|
1
|
2
|
7
|
6
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
JFE Steel Corporation | 6067 |
17 |
Nippon Steel Corporation | 5649 |
9 |
POSCO Co., Ltd. | 1059 |
5 |
Yuken Industry Co., Ltd. | 60 |
3 |
Henkel AG & Co. KGaA | 10129 |
2 |
DIPSOL Chemicals Co., Ltd. | 57 |
2 |
Rolls-Royce PLC | 2944 |
1 |
PPG Industries Ohio, Inc. | 3430 |
1 |
Atotech Deutschland GmbH | 586 |
1 |
Baoshan Iron & Steel Co., Ltd. | 832 |
1 |
Chemetall GmbH | 382 |
1 |
ChemTreat, Inc. | 198 |
1 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
1 |
MTU Aero Engines GmbH | 565 |
1 |
Nihon Parkerizing Co., Ltd. | 274 |
1 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
1 |
Praxair S.T. Technology, Inc. | 133 |
1 |
Rembrandtin Lack GmbH Nfg. KG | 9 |
1 |
ThyssenKrupp Steel Europe AG | 924 |
1 |
KS Aluminium-Technologie AG | 8 |
1 |
Other owners | 2 |