- 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 16/56 - After-treatment
Patent holdings for IPC class C23C 16/56
Total number of patents in this class: 1797
10-year publication summary
113
|
148
|
150
|
188
|
182
|
178
|
186
|
228
|
212
|
58
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Applied Materials, Inc. | 16587 |
260 |
Tokyo Electron Limited | 11599 |
125 |
Lam Research Corporation | 4775 |
94 |
ASM IP Holding B.V. | 1715 |
85 |
Kokusai Electric Corporation | 1791 |
48 |
Versum Materials US, LLC | 591 |
39 |
Samsung Electronics Co., Ltd. | 131630 |
28 |
Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
24 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
24 |
Sumitomo Electric Hardmetal Corp. | 969 |
20 |
Silcotek Corp. | 64 |
19 |
Entegris, Inc. | 1736 |
18 |
Sumitomo Electric Industries, Ltd. | 14131 |
17 |
International Business Machines Corporation | 60644 |
14 |
Element Six Technologies Limited | 179 |
14 |
Centre National de La Recherche Scientifique | 9632 |
13 |
Novellus Systems, Inc. | 559 |
12 |
Hon Hai Precision Industry Co., Ltd. | 4157 |
9 |
Tsinghua University | 5426 |
9 |
Mainstream Engineering Corporation | 143 |
9 |
Other owners | 916 |