- 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 13/24 - Focusing screens
Patent holdings for IPC class G03B 13/24
Total number of patents in this class: 16
10-year publication summary
|
2
|
3
|
0
|
1
|
0
|
0
|
0
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 20528 |
2 |
| Sony Corporation | 30029 |
1 |
| Sony Mobile Communications AB | 352 |
1 |
| Canon Inc. | 44414 |
1 |
| Nikon Corporation | 7229 |
1 |
| Olympus Corporation | 12900 |
1 |
| Motorola Solutions, Inc. | 4570 |
1 |
| OSRAM GmbH | 2181 |
1 |
| OSRAM Opto Semiconductors GmbH | 3216 |
1 |
| Ability Enterprise Co., Ltd. | 91 |
1 |
| Arnold & Richter Cine Technik GmbH & Co. Betriebs KG | 305 |
1 |
| Neoviewkolon Co., Ltd. | 28 |
1 |
| Tilta Inc. | 137 |
1 |
| OM Digital Solutions Corp. | 581 |
1 |
| Zhongshan Union Optech Research Institute Co., Ltd. | 17 |
1 |
| Other owners | 0 |