- All sections
- G - Physics
- G03B - Apparatus or arrangements for taking photographs or for projecting or viewing themapparatus or arrangements employing analogous techniques using waves other than optical wavesaccessories therefor
- G03B 27/42 - Projection printing apparatus, e.g. enlarger, copying camera for automatic sequential copying of the same original
Patent holdings for IPC class G03B 27/42
Total number of patents in this class: 897
10-year publication summary
|
96
|
65
|
50
|
36
|
18
|
3
|
2
|
2
|
0
|
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. | 7434 |
306 |
| Carl Zeiss SMT GmbH | 3019 |
145 |
| Nikon Corporation | 7213 |
121 |
| Canon Inc. | 40352 |
64 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 43258 |
31 |
| Applied Materials, Inc. | 18861 |
18 |
| ASML Holding N.V. | 500 |
18 |
| Samsung Electronics Co., Ltd. | 147501 |
12 |
| Micron Technology, Inc. | 26183 |
9 |
| Kioxia Corporation | 10387 |
8 |
| Tokyo Electron Limited | 12877 |
7 |
| Shanghai Micro Electronics Equipment (Group) Co., Ltd. | 252 |
6 |
| Cymer, LLC | 389 |
5 |
| Boe Technology Group Co., Ltd. | 41495 |
5 |
| KLA-Tencor Corporation | 2544 |
5 |
| NuFlare Technology, Inc. | 852 |
5 |
| Bfly Operations, Inc. | 371 |
5 |
| Samsung Display Co., Ltd. | 35171 |
4 |
| Media Lario S.r.l. | 41 |
4 |
| Screen Semiconductor Solutions Co., Ltd. | 90 |
4 |
| Other owners | 115 |