- 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 4/08 - Metallic material containing only metal elements
Patent holdings for IPC class C23C 4/08
Total number of patents in this class: 609
10-year publication summary
|
67
|
54
|
44
|
48
|
31
|
35
|
28
|
30
|
26
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24033 |
32 |
| Rtx Corporation | 10082 |
25 |
| Federal-Mogul Burscheid GmbH | 275 |
12 |
| Safran Aircraft Engines | 6671 |
10 |
| Tokyo Electron Limited | 13796 |
8 |
| Nissan Motor Co., Ltd. | 12947 |
8 |
| Nippon Steel Corporation | 6843 |
8 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
8 |
| General Electric Company | 13888 |
7 |
| Treadstone Technologies, Inc. | 25 |
7 |
| United States of America AS represented by The Administrator of NASA | 471 |
7 |
| GE Infrastructure Technology, LLC | 6171 |
7 |
| Siemens Energy, Inc. | 1685 |
6 |
| Oerlikon Metco (US) Inc. | 215 |
6 |
| Praxair S.T. Technology, Inc. | 119 |
6 |
| Ford Global Technologies, LLC | 21478 |
5 |
| Caterpillar Inc. | 10272 |
5 |
| Dai-Ichi High Frequency Co., Ltd. | 37 |
5 |
| Fujimi Incorporated | 801 |
5 |
| Sturm Maschinen- & Anlagenbau GmbH | 39 |
5 |
| Other owners | 427 |