- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 11/44 - Optical arrangements or shielding arrangements, e.g. filters, black matrices, light reflecting means or electromagnetic shielding means
Patent holdings for IPC class H01J 11/44
Total number of patents in this class: 44
10-year publication summary
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0
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1
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0
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1
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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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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73476 |
9 |
| Matsushita Electric Industrial Co., Ltd. | 1276 |
6 |
| Panasonic Corporation | 20059 |
5 |
| Hitachi, Ltd. | 15537 |
5 |
| Semiconductor Energy Laboratory Co., Ltd. | 11471 |
4 |
| Hitachi Plasma Display Limited | 93 |
3 |
| Samsung Display Co., Ltd. | 35100 |
2 |
| Asahi Glass Company, Limited | 2766 |
2 |
| Dexerials Corporation | 1935 |
2 |
| Honeywell International Inc. | 13554 |
1 |
| Dai Nippon Printing Co., Ltd. | 4109 |
1 |
| Boe Technology Group Co., Ltd. | 41461 |
1 |
| Cambrios Technologies Corporation | 41 |
1 |
| DuPont Kabushiki Kaisha | 1 |
1 |
| Sichuan COC Display Devices Co., Ltd. | 24 |
1 |
| Other owners | 0 |