- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 3/20 - Magnetic lenses
Patent holdings for IPC class H01J 3/20
Total number of patents in this class: 18
10-year publication summary
|
2
|
1
|
2
|
0
|
2
|
1
|
0
|
1
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ASML Netherlands B.V. | 6816 |
5 |
| ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH | 149 |
3 |
| Hermes Microvision Incorporated B.V. | 129 |
3 |
| Carl Zeiss Microscopy GmbH | 1146 |
1 |
| Carl Zeiss NTS GmbH | 33 |
1 |
| Nissin ION Equipment Co., Ltd. | 78 |
1 |
| Param Corporation | 8 |
1 |
| Rayton Solar Inc. | 7 |
1 |
| Standard Beam Company, Inc. | 1 |
1 |
| PerkinElmer U.S. LLC | 312 |
1 |
| Other owners | 0 |