- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 13/00 - Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
Patent holdings for IPC class H01J 13/00
Total number of patents in this class: 8
10-year publication summary
|
0
|
0
|
0
|
0
|
2
|
1
|
1
|
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
|
|---|---|---|
| Matsushita Electric Industrial Co., Ltd. | 4724 |
1 |
| Kyocera Corporation | 12735 |
1 |
| ZTE Corporation | 39218 |
1 |
| May Patents Ltd. | 124 |
1 |
| Landis+Gyr Technology, Inc. | 406 |
1 |
| Innogy Innovation GmbH | 45 |
1 |
| ABB Technology Ltd | 490 |
1 |
| 2S Water Incorporated | 19 |
1 |
| Other owners | 0 |