- 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 22/56 - Treatment of aluminium or alloys based thereon
Patent holdings for IPC class C23C 22/56
Total number of patents in this class: 178
10-year publication summary
8
|
10
|
10
|
21
|
31
|
16
|
7
|
10
|
9
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Henkel AG & Co. KGaA | 10129 |
14 |
PRC-DeSoto International, Inc. | 567 |
13 |
Novelis Inc. | 656 |
13 |
PPG Industries Ohio, Inc. | 3430 |
11 |
Chemetall GmbH | 382 |
5 |
The Boeing Company | 19843 |
4 |
MAHLE International GmbH | 2670 |
4 |
Toyo Seikan Group Holdings, Ltd. | 765 |
4 |
Arconic Technologies LLC | 219 |
4 |
BASF SE | 19740 |
3 |
Ecolab USA Inc. | 5190 |
3 |
Mecaprotec Industries | 10 |
3 |
Nihon Parkerizing Co., Ltd. | 274 |
3 |
Freiborne Industries, Inc. | 4 |
3 |
Airbus Operations GmbH | 3188 |
2 |
BASF AG | 1258 |
2 |
Denso Corporation | 23338 |
2 |
Applied Materials, Inc. | 16587 |
2 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
2 |
Chemeon Surface Technology, LLC | 18 |
2 |
Other owners | 79 |