- 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: 214
10-year publication summary
|
15
|
22
|
22
|
20
|
14
|
18
|
15
|
17
|
24
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ASML Netherlands B.V. | 7190 |
35 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 40717 |
29 |
| KLA-Tencor Corporation | 2550 |
18 |
| Samsung Electronics Co., Ltd. | 139551 |
10 |
| Boe Technology Group Co., Ltd. | 39086 |
8 |
| D2s, Inc. | 156 |
7 |
| Synopsys, Inc. | 2805 |
6 |
| Carl Zeiss SMT GmbH | 2831 |
6 |
| Nikon Corporation | 7118 |
5 |
| Hoya Corporation | 2746 |
5 |
| International Business Machines Corporation | 60224 |
4 |
| Ordos Yuansheng Optoelectronics Co., Ltd. | 1257 |
4 |
| Changxin Memory Technologies, Inc. | 4926 |
4 |
| KLA Corporation | 1406 |
4 |
| Sandisk Technologies Inc. | 4953 |
3 |
| Dai Nippon Printing Co., Ltd. | 3985 |
3 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8482 |
3 |
| Beijing BOE Optoelectronics Technology Co., Ltd. | 3833 |
3 |
| Shanghai Huali Microelectronics Corporation | 166 |
3 |
| Kioxia Corporation | 10136 |
3 |
| Other owners | 51 |