- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 23/40 - Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit
Patent holdings for IPC class H01J 23/40
Total number of patents in this class: 11
10-year publication summary
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0
|
4
|
3
|
1
|
0
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0
|
0
|
1
|
1
|
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 | 20030 |
2 |
| Calabazas Creek Research, Inc. | 11 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 32105 |
1 |
| NEC Network and Sensor Systems, Ltd. | 47 |
1 |
| Toshiba Hokuto Electronics Corporation | 26 |
1 |
| The United States of America as represented by the Secretary of the Air Force | 859 |
1 |
| Canon Electron Tubes & Devices Co., Ltd. | 166 |
1 |
| Nisshinbo Micro Devices Inc. | 131 |
1 |
| Rtx Corporation | 9483 |
1 |
| Other owners | 0 |