- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 19/10 - Thermionic cathodes characterised by the shape
Patent holdings for IPC class H01J 19/10
Total number of patents in this class: 9
10-year publication summary
|
3
|
2
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Applied Physics Technologies, Inc. | 14 |
3 |
| ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH | 158 |
1 |
| Oregon Physics, LLC | 6 |
1 |
| Toshiba Materials Co., Ltd. | 662 |
1 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6270 |
1 |
| Canon Electron Tubes & Devices Co., Ltd. | 164 |
1 |
| GE Precision Healthcare LLC | 5449 |
1 |
| Other owners | 0 |