- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 19/28 - Non-electron-emitting electrodes; Screens
Patent holdings for IPC class H01J 19/28
Total number of patents in this class: 3
10-year publication summary
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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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0
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1
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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
|
|---|---|---|
| Semiconductor Manufacturing International (Shanghai) Corporation | 1764 |
1 |
| Shenzhen Bencent Electronics Co., Ltd. | 16 |
1 |
| Vacon Ltd. | 2 |
1 |
| Other owners | 0 |