- 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 22/18 - Orthophosphates containing manganese cations
Patent holdings for IPC class C23C 22/18
Total number of patents in this class: 113
10-year publication summary
|
3
|
6
|
13
|
6
|
10
|
11
|
9
|
7
|
5
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Chemetall GmbH | 374 |
30 |
| JFE Steel Corporation | 6992 |
11 |
| Nippon Steel Corporation | 6405 |
8 |
| Henkel AG & Co. KGaA | 10636 |
7 |
| ThyssenKrupp Steel Europe AG | 961 |
7 |
| Vallourec Oil and Gas France | 456 |
4 |
| PPG Industries Ohio, Inc. | 3435 |
3 |
| Nihon Parkerizing Co., Ltd. | 289 |
3 |
| Hydromecanique et Frottement | 113 |
3 |
| JTEKT Corporation | 2519 |
2 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
2 |
| Rhodia Operations | 1585 |
2 |
| Safran Aircraft Engines | 6329 |
2 |
| Taisei Plas Co., Ltd. | 44 |
2 |
| Tata Steel Ijmuiden B.V. | 310 |
2 |
| Mussel Polymers, Inc. | 27 |
2 |
| Centre National de La Recherche Scientifique | 10595 |
1 |
| Airbus Helicopters | 972 |
1 |
| Hamilton Sundstrand Corporation | 4932 |
1 |
| NSK Ltd. | 2799 |
1 |
| Other owners | 19 |