- 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 13/04 - Viewfinders of direct-vision type, e.g. frame, sighting mark
Patent holdings for IPC class G03B 13/04
Total number of patents in this class: 30
10-year publication summary
|
4
|
2
|
1
|
5
|
2
|
1
|
3
|
1
|
0
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29702 |
8 |
| Sony Corporation | 30910 |
4 |
| Canon Inc. | 40555 |
3 |
| OM Digital Solutions Corp. | 603 |
2 |
| Sony Group Corporation | 42 |
2 |
| LG Electronics Inc. | 73690 |
1 |
| Ricoh Company, Ltd. | 13384 |
1 |
| Robert Bosch GmbH | 42826 |
1 |
| Olympus Corporation | 13127 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 32105 |
1 |
| Corning Incorporated | 10327 |
1 |
| Panasonic Intellectual Property Corporation of America | 6862 |
1 |
| TDG Acquisition Company, LLC | 11 |
1 |
| Inxpect S.p.A. | 40 |
1 |
| TDG Acquisition Company, LLC d/b/a Six15 Technologies | 1 |
1 |
| Sony Group Corporation | 14299 |
1 |
| Other owners | 0 |