- 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 22/78 - Pretreatment of the material to be coated
Patent holdings for IPC class C23C 22/78
Total number of patents in this class: 450
10-year publication summary
|
46
|
41
|
48
|
34
|
37
|
25
|
30
|
19
|
20
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Henkel AG & Co. KGaA | 10707 |
50 |
| JFE Steel Corporation | 7308 |
29 |
| Chemetall GmbH | 386 |
28 |
| PPG Industries Ohio, Inc. | 3352 |
23 |
| ArcelorMittal | 2522 |
20 |
| Nippon Steel Corporation | 6661 |
19 |
| Nihon Parkerizing Co., Ltd. | 291 |
18 |
| The Boeing Company | 20102 |
7 |
| PRC-DeSoto International, Inc. | 560 |
7 |
| Novelis Inc. | 766 |
7 |
| Hydro Aluminium Rolled Products GmbH | 115 |
6 |
| ThyssenKrupp Steel Europe AG | 977 |
6 |
| Nanovis, LLC | 38 |
5 |
| Nippon Paint Surf Chemicals Co., Ltd. | 94 |
5 |
| POSCO | 2155 |
5 |
| Baoshan Iron & Steel Co., Ltd. | 1072 |
4 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2832 |
4 |
| Nisshin Steel Co., Ltd. | 390 |
4 |
| Santoku Corporation | 83 |
4 |
| ThyssenKrupp AG | 3462 |
4 |
| Other owners | 195 |