- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 9/20 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only arranged + – + only one component having a compound lens the rear component having the compound
Patent holdings for IPC class G02B 9/20
Total number of patents in this class: 4
10-year publication summary
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0
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0
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0
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0
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2
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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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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ricoh Imaging Company, Ltd. | 153 |
1 |
| Olympus Corporation | 13667 |
1 |
| Largan Precision Co., Ltd. | 1411 |
1 |
| Nikon Vision Co., Ltd. | 125 |
1 |
| Other owners | 0 |