- All sections
- C - Chemistrymetallurgy
- C23C - Coating metallic materialcoating material with metallic materialsurface treatment of metallic material by diffusion into the surface, by chemical conversion or substitutioncoating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general
- C23C 22/12 - Orthophosphates containing zinc cations
Patent holdings for IPC class C23C 22/12
Total number of patents in this class: 94
10-year publication summary
|
16
|
8
|
9
|
4
|
6
|
10
|
5
|
6
|
3
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7407 |
13 |
| Nippon Steel Corporation | 6751 |
13 |
| Henkel AG & Co. KGaA | 10703 |
10 |
| PPG Industries Ohio, Inc. | 3343 |
8 |
| Chemetall GmbH | 388 |
8 |
| Nippon Steel & Sumitomo Metal Corporation | 1982 |
6 |
| Nihon Parkerizing Co., Ltd. | 291 |
5 |
| BASF SE | 21165 |
2 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2833 |
2 |
| Taisei Plas Co., Ltd. | 41 |
2 |
| ThyssenKrupp Steel Europe AG | 987 |
2 |
| Vallourec Oil and Gas France | 454 |
2 |
| Caterpillar Inc. | 10191 |
1 |
| Agency for Science, Technology and Research | 3697 |
1 |
| Airbus Defence and Space GmbH | 869 |
1 |
| AK Steel Properties, Inc. | 75 |
1 |
| Atotech Deutschland GmbH | 528 |
1 |
| DIPSOL Chemicals Co., Ltd. | 60 |
1 |
| Mankiewicz Gebr. & Co. GmbH & Co. KG | 123 |
1 |
| NHK Spring Co., Ltd. | 1950 |
1 |
| Other owners | 13 |