- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 29/50 - Electron guns two or more guns being arranged in a single vacuum space, e.g. for plural-ray tubes
Patent holdings for IPC class H01J 29/50
Total number of patents in this class: 13
10-year publication summary
|
1
|
0
|
2
|
0
|
1
|
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
|
|---|---|---|
| Thomson Licensing | 4027 |
3 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| Hewlett-Packard Development Company, L.P. | 28538 |
1 |
| Electronics and Telecommunications Research Institute | 8830 |
1 |
| Advantest Corporation | 1939 |
1 |
| China Star Optoelectronics International (HK) Limited | 7 |
1 |
| ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH | 149 |
1 |
| Jiddtek Pty Ltd | 1 |
1 |
| Sarnoff Corporation | 99 |
1 |
| Varex Imaging Corporation | 294 |
1 |
| Canon Electron Tubes & Devices Co., Ltd. | 154 |
1 |
| Other owners | 0 |