- 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 17/20 - Signals indicating condition of a camera member or suitability of light visible in viewfinder
Patent holdings for IPC class G03B 17/20
Total number of patents in this class: 200
10-year publication summary
|
12
|
14
|
19
|
26
|
10
|
16
|
12
|
7
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 28939 |
77 |
| Sony Corporation | 31442 |
25 |
| Canon Inc. | 38656 |
12 |
| Sony Group Corporation | 12982 |
11 |
| Panasonic Holdings Corporation | 1635 |
9 |
| Nikon Corporation | 7124 |
8 |
| Canon Kabushiki Kaisha | 6972 |
8 |
| Samsung Electronics Co., Ltd. | 140839 |
5 |
| Maxell Holdings, Ltd. | 1348 |
5 |
| Maxell, Ltd. | 2711 |
5 |
| Panasonic Corporation | 20280 |
3 |
| Advanced Interconnect Systems Limited | 74 |
3 |
| Olympus Corporation | 13250 |
2 |
| Kyocera Corporation | 13446 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 30164 |
2 |
| Asahi Glass Company, Limited | 2860 |
2 |
| Nihon Video System Co., Ltd. | 26 |
2 |
| OM Digital Solutions Corp. | 625 |
2 |
| Sony Ericsson Mobile Communications AB | 1851 |
1 |
| Nokia Corporation | 6039 |
1 |
| Other owners | 15 |