- 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: 84
10-year publication summary
|
4
|
2
|
3
|
3
|
1
|
3
|
0
|
2
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Varian Semiconductor Equipment Associates, Inc. | 1282 |
9 |
| ASML Netherlands B.V. | 6816 |
6 |
| Hermes Microvision Incorporated B.V. | 129 |
6 |
| ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH | 149 |
5 |
| Mitsubishi Electric Corporation | 43934 |
4 |
| Gigaphoton Inc. | 1120 |
3 |
| Hitachi High-Tech Corporation | 4424 |
3 |
| Hitachi, Ltd. | 16452 |
2 |
| Applied Materials, Inc. | 16587 |
2 |
| Carl Zeiss Microscopy GmbH | 1146 |
2 |
| KLA-Tencor Corporation | 2574 |
2 |
| Veeco Instruments Inc. | 332 |
2 |
| Ampliqa, Inc. | 6 |
2 |
| NCX Corporation | 33 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| Industrial Technology Research Institute | 4898 |
1 |
| Empire Technology Development LLC | 1636 |
1 |
| Accuray Incorporated | 408 |
1 |
| Advanced ION Beam Technology, Inc. | 1 |
1 |
| Axcelis Technologies, Inc. | 429 |
1 |
| Other owners | 28 |