- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 23/48 - Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit for linking interaction circuit with coaxial linesDevices of the coupled helices type
Patent holdings for IPC class H01J 23/48
Total number of patents in this class: 3
10-year publication summary
|
0
|
0
|
0
|
0
|
0
|
0
|
1
|
0
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Network and Sensor Systems, Ltd. | 49 |
1 |
| Varian Medical Systems, Inc. | 911 |
1 |
| Canon Electron Tubes & Devices Co., Ltd. | 166 |
1 |
| Other owners | 0 |