- All sections
- G - Physics
- G03F - Photomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devicesmaterials therefororiginals thereforapparatus specially adapted therefor
- G03F 1/44 - Testing or measuring features, e.g. grid patterns, focus monitors, sawtooth scales or notched scales
Patent holdings for IPC class G03F 1/44
Total number of patents in this class: 220
10-year publication summary
|
15
|
22
|
22
|
20
|
14
|
18
|
15
|
17
|
24
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ASML Netherlands B.V. | 7351 |
37 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42288 |
29 |
| KLA-Tencor Corporation | 2546 |
18 |
| Samsung Electronics Co., Ltd. | 144675 |
12 |
| Boe Technology Group Co., Ltd. | 40728 |
8 |
| Carl Zeiss SMT GmbH | 2958 |
7 |
| D2s, Inc. | 174 |
7 |
| Synopsys, Inc. | 2782 |
6 |
| Nikon Corporation | 7166 |
5 |
| Hoya Corporation | 2738 |
5 |
| International Business Machines Corporation | 61144 |
4 |
| Ordos Yuansheng Optoelectronics Co., Ltd. | 1268 |
4 |
| Changxin Memory Technologies, Inc. | 4926 |
4 |
| KLA Corporation | 1522 |
4 |
| Micron Technology, Inc. | 26221 |
3 |
| Dai Nippon Printing Co., Ltd. | 4066 |
3 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8478 |
3 |
| Beijing BOE Optoelectronics Technology Co., Ltd. | 3878 |
3 |
| Shanghai Huali Microelectronics Corporation | 176 |
3 |
| Kioxia Corporation | 10288 |
3 |
| Other owners | 52 |