- 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: 10
10-year publication summary
|
1
|
3
|
2
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Applied Physics Technologies, Inc. | 12 |
3 |
| General Electric Company | 18133 |
1 |
| ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH | 149 |
1 |
| INFICON GmbH | 59 |
1 |
| Oregon Physics, LLC | 5 |
1 |
| Toshiba Materials Co., Ltd. | 600 |
1 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
1 |
| Canon Electron Tubes & Devices Co., Ltd. | 154 |
1 |
| Other owners | 0 |