- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 31/48 - Tubes with amplification of output effected by electron-multiplier arrangements within the vacuum space
Patent holdings for IPC class H01J 31/48
Total number of patents in this class: 12
10-year publication summary
|
0
|
0
|
1
|
4
|
1
|
0
|
1
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ASML Netherlands B.V. | 7361 |
2 |
| Hamamatsu Photonics K.K. | 4405 |
2 |
| Photonis France | 53 |
2 |
| Photonics West, LLC | 23 |
2 |
| FEI Company | 941 |
1 |
| Intevac, Inc. | 137 |
1 |
| Photonis France SAS | 5 |
1 |
| Virgin Islands Microsystems, Inc. | 51 |
1 |
| Other owners | 0 |