- All sections
- C - Chemistrymetallurgy
- C03C - Chemical composition of glasses, glazes or vitreous enamelssurface treatment of glasssurface treatment of fibres or filaments made from glass, minerals or slagsjoining glass to glass or other materials
- C03C 25/68 - Chemical treatment, e.g. leaching, acid or alkali treatment by etching
Patent holdings for IPC class C03C 25/68
Total number of patents in this class: 544
10-year publication summary
|
71
|
51
|
27
|
8
|
6
|
10
|
7
|
3
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokyo Electron Limited | 12762 |
52 |
| Applied Materials, Inc. | 18746 |
33 |
| Lam Research Corporation | 5272 |
28 |
| Samsung Electronics Co., Ltd. | 146811 |
15 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42945 |
14 |
| Kioxia Corporation | 10314 |
12 |
| Micron Technology, Inc. | 26264 |
11 |
| Hon Hai Precision Industry Co., Ltd. | 4027 |
11 |
| CMC Materials LLC | 246 |
11 |
| Tsinghua University | 5940 |
10 |
| Hitachi High-Tech Corporation | 5339 |
10 |
| Magic Leap, Inc. | 3272 |
7 |
| ASML Netherlands B.V. | 7406 |
6 |
| United Microelectronics Corp. | 4241 |
6 |
| FUJIFILM Electronic Materials U.S.A., Inc. | 331 |
6 |
| Samsung Display Co., Ltd. | 34907 |
5 |
| Canon Inc. | 40095 |
5 |
| Corning Incorporated | 10275 |
5 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10931 |
5 |
| Sumitomo Electric Industries, Ltd. | 15529 |
4 |
| Other owners | 288 |