- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 3/18 - Electrostatic lenses
Patent holdings for IPC class H01J 3/18
Total number of patents in this class: 20
10-year publication summary
|
1
|
0
|
0
|
0
|
1
|
0
|
0
|
0
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0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Thermo Fisher Scientific (Bremen) GmbH | 638 |
4 |
| Varian Semiconductor Equipment Associates, Inc. | 1170 |
2 |
| Purdue Research Foundation | 3977 |
2 |
| Nikon Corporation | 7229 |
1 |
| ASML Netherlands B.V. | 8033 |
1 |
| Shimadzu Corporation | 6376 |
1 |
| Axcelis Technologies, Inc. | 425 |
1 |
| ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH | 157 |
1 |
| SEN Corporation, an Shi and Axcelis Company | 14 |
1 |
| Sumitomo Heavy Industries ION Technology Co., Ltd. | 110 |
1 |
| Standard Beam Company, Inc. | 1 |
1 |
| Siemens Healthineers AG | 7129 |
1 |
| Canon Kabushiki Kaisha | 7406 |
1 |
| Canon Electron Tubes & Devices Co., Ltd. | 166 |
1 |
| GE Precision Healthcare LLC | 5808 |
1 |
| Other owners | 0 |