- 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 16/34 - Nitrides
Patent holdings for IPC class C23C 16/34
Total number of patents in this class: 2808
10-year publication summary
|
169
|
211
|
282
|
260
|
284
|
274
|
263
|
242
|
202
|
161
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Applied Materials, Inc. | 18819 |
255 |
| Tokyo Electron Limited | 12841 |
244 |
| Kokusai Electric Corporation | 2033 |
207 |
| ASM IP Holding B.V. | 2100 |
169 |
| Lam Research Corporation | 5302 |
98 |
| Versum Materials US, LLC | 647 |
84 |
| Sumitomo Electric Hardmetal Corp. | 1032 |
76 |
| Mitsubishi Materials Corporation | 2453 |
47 |
| Kyocera Corporation | 13887 |
39 |
| Sumitomo Chemical Company, Limited | 9051 |
36 |
| Samsung Electronics Co., Ltd. | 147334 |
35 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3992 |
32 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 43158 |
27 |
| Soulbrain Co., Ltd. | 253 |
27 |
| Sumitomo Electric Industries, Ltd. | 15576 |
26 |
| NGK Insulators, Ltd. | 4995 |
25 |
| Novellus Systems, Inc. | 478 |
24 |
| Tokuyama Corporation | 1403 |
24 |
| Tungaloy Corporation | 512 |
24 |
| Entegris, Inc. | 1888 |
23 |
| Other owners | 1286 |