- All sections
- C - Chemistry; metallurgy
- C03C - Chemical composition of glasses, glazes or vitreous enamels; surface treatment of glass; surface treatment of fibres or filaments made from glass, minerals or slags; joining 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: 577
10-year publication summary
72
|
71
|
51
|
29
|
8
|
6
|
10
|
7
|
3
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Tokyo Electron Limited | 11599 |
55 |
Applied Materials, Inc. | 16587 |
34 |
Lam Research Corporation | 4775 |
32 |
Samsung Electronics Co., Ltd. | 131630 |
17 |
Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
15 |
Kioxia Corporation | 9847 |
12 |
Micron Technology, Inc. | 24960 |
11 |
Hon Hai Precision Industry Co., Ltd. | 4157 |
11 |
CMC Materials LLC | 254 |
11 |
Tsinghua University | 5426 |
10 |
Hitachi High-Tech Corporation | 4424 |
10 |
Magic Leap, Inc. | 3028 |
9 |
Samsung Display Co., Ltd. | 30585 |
6 |
Corning Incorporated | 9932 |
6 |
ASML Netherlands B.V. | 6816 |
6 |
United Microelectronics Corp. | 3921 |
6 |
FUJIFILM Electronic Materials U.S.A., Inc. | 270 |
6 |
Rohm and Haas Electronic Materials CMP Holdings, Inc. | 309 |
6 |
Canon Inc. | 36841 |
5 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
5 |
Other owners | 304 |