- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 29/90 - Leading-in arrangements; Seals therefor
Patent holdings for IPC class H01J 29/90
Total number of patents in this class: 7
10-year publication summary
|
1
|
1
|
0
|
0
|
1
|
0
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0
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0
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0
|
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
|
|---|---|---|
| LG Innotek Co., Ltd. | 6758 |
2 |
| Hitachi, Ltd. | 16452 |
1 |
| Hamamatsu Photonics K.K. | 4161 |
1 |
| Central Glass Company, Limited | 1244 |
1 |
| Toshiba Electron Tubes & Devices Co., Ltd. | 56 |
1 |
| Vu1 Corporation | 5 |
1 |
| Other owners | 0 |