- 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 22/56 - Treatment of aluminium or alloys based thereon
Patent holdings for IPC class C23C 22/56
Total number of patents in this class: 182
10-year publication summary
|
10
|
21
|
32
|
16
|
10
|
9
|
10
|
9
|
7
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Henkel AG & Co. KGaA | 10777 |
15 |
| PRC-DeSoto International, Inc. | 574 |
12 |
| Novelis Inc. | 786 |
12 |
| PPG Industries Ohio, Inc. | 3324 |
10 |
| Chemeon Surface Technology, LLC | 30 |
7 |
| Chemetall GmbH | 353 |
6 |
| Arconic Technologies LLC | 241 |
6 |
| The Boeing Company | 20193 |
4 |
| MAHLE International GmbH | 2921 |
4 |
| Nihon Parkerizing Co., Ltd. | 297 |
4 |
| Toyo Seikan Group Holdings, Ltd. | 854 |
4 |
| BASF SE | 21320 |
3 |
| Ecolab USA Inc. | 5831 |
3 |
| Mecaprotec Industries | 10 |
3 |
| POSCO Co., Ltd. | 2029 |
3 |
| Safran Electronics & Defense | 1401 |
3 |
| Freiborne Industries, Inc. | 4 |
3 |
| Rtx Corporation | 10182 |
3 |
| Airbus Operations GmbH | 3463 |
2 |
| Denso Corporation | 25746 |
2 |
| Other owners | 73 |