- 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 16/56 - After-treatment
Patent holdings for IPC class C23C 16/56
Total number of patents in this class: 2160
10-year publication summary
|
145
|
148
|
188
|
182
|
177
|
188
|
232
|
216
|
211
|
211
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Applied Materials, Inc. | 19248 |
325 |
| Tokyo Electron Limited | 13136 |
167 |
| ASM IP Holding B.V. | 2161 |
130 |
| Lam Research Corporation | 5372 |
116 |
| Kokusai Electric Corporation | 2103 |
58 |
| Versum Materials US, LLC | 656 |
46 |
| Samsung Electronics Co., Ltd. | 149087 |
36 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46161 |
32 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10954 |
25 |
| Entegris, Inc. | 1908 |
24 |
| Sumitomo Electric Hardmetal Corp. | 1047 |
22 |
| Silcotek Corp. | 69 |
19 |
| Sumitomo Electric Industries, Ltd. | 15780 |
17 |
| Centre National de La Recherche Scientifique | 10693 |
16 |
| Element Six Technologies Limited | 200 |
14 |
| International Business Machines Corporation | 61721 |
12 |
| Novellus Systems, Inc. | 470 |
11 |
| Hon Hai Precision Industry Co., Ltd. | 4024 |
10 |
| Tsinghua University | 6020 |
10 |
| Rtx Corporation | 9596 |
10 |
| Other owners | 1060 |