- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 1/50 - Magnetic means for controlling the discharge
Patent holdings for IPC class H01J 1/50
Total number of patents in this class: 73
10-year publication summary
|
3
|
3
|
1
|
3
|
1
|
2
|
0
|
0
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Varian Semiconductor Equipment Associates, Inc. | 1170 |
9 |
| ASML Netherlands B.V. | 8033 |
6 |
| Hermes Microvision Incorporated B.V. | 122 |
6 |
| Mitsubishi Electric Corporation | 48409 |
4 |
| Gigaphoton Inc. | 1334 |
3 |
| ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH | 157 |
3 |
| Hitachi, Ltd. | 16221 |
2 |
| KLA-Tencor Corporation | 2517 |
2 |
| Ampliqa, Inc. | 6 |
2 |
| Hitachi High-Tech Corporation | 5987 |
2 |
| NCX Corporation | 39 |
2 |
| Toshiba Corporation | 12732 |
1 |
| Applied Materials, Inc. | 20601 |
1 |
| Industrial Technology Research Institute | 5199 |
1 |
| Agilent Technologies, Inc. | 2643 |
1 |
| Empire Technology Development LLC | 1611 |
1 |
| Advanced ION Beam Technology, Inc. | 1 |
1 |
| Axcelis Technologies, Inc. | 425 |
1 |
| Carl Zeiss Microscopy GmbH | 1302 |
1 |
| Carl Zeiss Microscopy, LLC | 27 |
1 |
| Other owners | 23 |