- 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 27/72 - Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
Patent holdings for IPC class G03B 27/72
Total number of patents in this class: 244
10-year publication summary
|
17
|
7
|
11
|
1
|
4
|
4
|
2
|
1
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Carl Zeiss SMT GmbH | 3352 |
81 |
| ASML Netherlands B.V. | 7984 |
47 |
| Nikon Corporation | 7230 |
27 |
| Canon Inc. | 44051 |
15 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48560 |
7 |
| FUJIFILM Corporation | 30594 |
6 |
| ASML Holding N.V. | 487 |
6 |
| Samsung Display Co., Ltd. | 38817 |
3 |
| Samsung Electronics Co., Ltd. | 158442 |
2 |
| The Regents of the University of California | 20815 |
2 |
| Hewlett-Packard Development Company, L.P. | 25170 |
2 |
| Micron Technology, Inc. | 27636 |
2 |
| Corning Incorporated | 10504 |
2 |
| Adtec Engineering Co., Ltd. | 42 |
2 |
| Beijing BOE Optoelectronics Technology Co., Ltd. | 3934 |
2 |
| Ushio Denki Kabushiki Kaisha | 1210 |
2 |
| LG Chem, Ltd. | 17950 |
1 |
| Ricoh Company, Ltd. | 13333 |
1 |
| Applied Materials, Inc. | 20467 |
1 |
| Mitsubishi Electric Corporation | 48172 |
1 |
| Other owners | 32 |