- All sections
- G - Physics
- G03B - Apparatus or arrangements for taking photographs or for projecting or viewing them; apparatus or arrangements employing analogous techniques using waves other than optical waves; accessories 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: 1105
10-year publication summary
|
85
|
96
|
65
|
51
|
36
|
18
|
3
|
2
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ASML Netherlands B.V. | 6816 |
422 |
| Carl Zeiss SMT GmbH | 2646 |
156 |
| Nikon Corporation | 7162 |
143 |
| Canon Inc. | 36841 |
70 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
35 |
| ASML Holding N.V. | 542 |
30 |
| Applied Materials, Inc. | 16587 |
18 |
| Samsung Electronics Co., Ltd. | 131630 |
15 |
| Micron Technology, Inc. | 24960 |
9 |
| Kioxia Corporation | 9847 |
8 |
| Tokyo Electron Limited | 11599 |
7 |
| Shanghai Micro Electronics Equipment (Group) Co., Ltd. | 243 |
6 |
| Samsung Display Co., Ltd. | 30585 |
5 |
| Cymer, LLC | 347 |
5 |
| Boe Technology Group Co., Ltd. | 35384 |
5 |
| KLA-Tencor Corporation | 2574 |
5 |
| NuFlare Technology, Inc. | 770 |
5 |
| Bfly Operations, Inc. | 354 |
5 |
| Applied Materials Israel, Ltd. | 549 |
4 |
| Adtec Engineering Co., Ltd. | 46 |
4 |
| Other owners | 148 |