- 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 7/20 - Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with change of lens
Patent holdings for IPC class G03B 7/20
Total number of patents in this class: 51
10-year publication summary
|
1
|
11
|
1
|
10
|
3
|
2
|
1
|
0
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 43768 |
22 |
| FUJIFILM Corporation | 30512 |
4 |
| Sony Corporation | 30208 |
3 |
| Panasonic Corporation | 19060 |
3 |
| Canon Kabushiki Kaisha | 7307 |
3 |
| OM Digital Solutions Corp. | 588 |
3 |
| Nikon Corporation | 7235 |
2 |
| Cymer, LLC | 412 |
2 |
| Applied Materials, Inc. | 20363 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
1 |
| Carl Zeiss AG | 915 |
1 |
| Carl Zeiss SMT GmbH | 3328 |
1 |
| Hangzhou Hikvision Digital Technology Co., Ltd. | 1345 |
1 |
| Perceptron, Inc. | 39 |
1 |
| Shenzhen Dongzheng Optical Technology Co., Ltd | 26 |
1 |
| Sony Group Corporation | 15597 |
1 |
| Shenzhen Mingmei Mobile Technology Co., Ltd. | 3 |
1 |
| Other owners | 0 |