- 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: 31
10-year publication summary
|
2
|
1
|
6
|
2
|
2
|
3
|
1
|
0
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30479 |
8 |
| Sony Corporation | 30236 |
4 |
| Canon Inc. | 43707 |
3 |
| TDG Acquisition Company, LLC | 12 |
2 |
| OM Digital Solutions Corp. | 588 |
2 |
| Sony Group Corporation | 40 |
2 |
| LG Electronics Inc. | 75591 |
1 |
| Ricoh Company, Ltd. | 13343 |
1 |
| Robert Bosch GmbH | 44094 |
1 |
| Olympus Corporation | 12943 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 33845 |
1 |
| Corning Incorporated | 10499 |
1 |
| Panasonic Intellectual Property Corporation of America | 7170 |
1 |
| Inxpect S.p.A. | 44 |
1 |
| Sony Group Corporation | 15561 |
1 |
| JD Sanmed Medical Technology Pty Ltd | 6 |
1 |
| Other owners | 0 |