- 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 22/82 - After-treatment
Patent holdings for IPC class C23C 22/82
Total number of patents in this class: 202
10-year publication summary
|
18
|
16
|
20
|
24
|
20
|
21
|
12
|
15
|
17
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6969 |
17 |
| ArcelorMittal | 2725 |
15 |
| JFE Steel Corporation | 7617 |
13 |
| POSCO Co., Ltd. | 2028 |
13 |
| Chemetall GmbH | 353 |
11 |
| Henkel AG & Co. KGaA | 10774 |
6 |
| PPG Industries Ohio, Inc. | 3322 |
5 |
| Atotech Deutschland GmbH | 522 |
4 |
| Baoshan Iron & Steel Co., Ltd. | 1126 |
4 |
| Voestalpine Stahl GmbH | 390 |
4 |
| The Boeing Company | 20197 |
3 |
| Applied Materials, Inc. | 20552 |
3 |
| Hamilton Sundstrand Corporation | 5013 |
3 |
| Nihon Parkerizing Co., Ltd. | 297 |
3 |
| Nippon Paint Surf Chemicals Co., Ltd. | 99 |
3 |
| Hewlett-Packard Development Company, L.P. | 25148 |
2 |
| Tokyo Electron Limited | 13920 |
2 |
| C3 International, LLC | 9 |
2 |
| Keronite International Limited | 15 |
2 |
| Novelis Inc. | 784 |
2 |
| Other owners | 85 |