- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 11/42 - Fluorescent layers
Patent holdings for IPC class H01J 11/42
Total number of patents in this class: 50
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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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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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 20050 |
12 |
| Matsushita Electric Industrial Co., Ltd. | 1238 |
7 |
| LG Electronics Inc. | 73531 |
6 |
| Hitachi, Ltd. | 15556 |
4 |
| Sumitomo Chemical Company, Limited | 9047 |
4 |
| Hitachi Plasma Display Limited | 93 |
3 |
| National Institute for Materials Science | 1105 |
3 |
| Semiconductor Energy Laboratory Co., Ltd. | 11475 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 31806 |
1 |
| ABB Research Ltd. | 878 |
1 |
| Korea Advanced Institute of Science and Technology | 4400 |
1 |
| Denka Company Limited | 2600 |
1 |
| Nihon Yamamura Glass Co., Ltd. | 131 |
1 |
| Nippon Electric Glass Co., Ltd. | 2468 |
1 |
| Tateho Chemical Industries Co., Ltd. | 59 |
1 |
| Ube Material Industries, Ltd. | 103 |
1 |
| Nanjing Huaxian High Technology Co., Ltd. | 10 |
1 |
| Litec-vermögensverwaltungsgesellschaft mbH | 10 |
1 |
| Other owners | 0 |