- 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 4/134 - Plasma spraying
Patent holdings for IPC class C23C 4/134
Total number of patents in this class: 819
10-year publication summary
|
98
|
113
|
115
|
127
|
80
|
83
|
81
|
66
|
50
|
46
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9420 |
84 |
| Applied Materials, Inc. | 18792 |
43 |
| Oerlikon Metco (US) Inc. | 206 |
25 |
| General Electric Company | 13807 |
22 |
| Shin-Etsu Chemical Co., Ltd. | 5676 |
22 |
| Siemens Energy Global GmbH & Co. KG | 2998 |
18 |
| Tokyo Electron Limited | 12825 |
17 |
| Safran Aircraft Engines | 6302 |
15 |
| GE Infrastructure Technology, LLC | 6241 |
15 |
| Siemens AG | 24436 |
13 |
| Rolls-Royce Corporation | 1756 |
13 |
| Fujimi Incorporated | 740 |
12 |
| Rolls-Royce North American Technologies, Inc. | 1169 |
12 |
| Tenneco Inc | 251 |
12 |
| SAFRAN S.A. | 623 |
10 |
| Komico Ltd. | 57 |
10 |
| Tocalo Co., Ltd. | 102 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8777 |
9 |
| Sturm Maschinen- & Anlagenbau GmbH | 49 |
9 |
| Lyten, Inc. | 318 |
8 |
| Other owners | 440 |