- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 29/28 - Luminescent screens with protective, conductive, or reflective layers
Patent holdings for IPC class H01J 29/28
Total number of patents in this class: 21
10-year publication summary
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0
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1
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0
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0
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1
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1
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0
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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
|
|---|---|---|
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
13 |
| Thomson Licensing | 4027 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
1 |
| Hamamatsu Photonics K.K. | 4161 |
1 |
| Ocean's King Lighting Science & Technology Co., Ltd. | 273 |
1 |
| L-3 Communications Corporation-Insight Technology Division | 4 |
1 |
| Canon Kabushiki Kaisha | 6884 |
1 |
| Hitachi High-Tech Corporation | 4424 |
1 |
| Other owners | 0 |