- 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: 17
10-year publication summary
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0
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2
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3
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0
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1
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0
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0
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0
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1
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1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 19327 |
2 |
| Sony Corporation | 31065 |
1 |
| Sony Mobile Communications AB | 360 |
1 |
| Canon Inc. | 39818 |
1 |
| Nikon Corporation | 7162 |
1 |
| Olympus Corporation | 13185 |
1 |
| Motorola Solutions, Inc. | 4402 |
1 |
| OSRAM GmbH | 2384 |
1 |
| OSRAM Opto Semiconductors GmbH | 3312 |
1 |
| Ability Enterprise Co., Ltd. | 88 |
1 |
| Arnold & Richter Cine Technik GmbH & Co. Betriebs KG | 309 |
1 |
| Fujinon Corporation | 61 |
1 |
| Neoviewkolon Co., Ltd. | 28 |
1 |
| Tilta Inc. | 75 |
1 |
| OM Digital Solutions Corp. | 608 |
1 |
| Zhongshan Union Optech Research Institute Co., Ltd. | 10 |
1 |
| Other owners | 0 |