- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 37/143 - Permanent magnetic lenses
Patent holdings for IPC class H01J 37/143
Total number of patents in this class: 34
10-year publication summary
|
2
|
3
|
1
|
3
|
3
|
1
|
4
|
3
|
3
|
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. | 7434 |
7 |
| Hermes Microvision Incorporated B.V. | 124 |
4 |
| Hitachi High-Technologies Corporation | 2002 |
3 |
| KLA Corporation | 1603 |
3 |
| Nikon Corporation | 7213 |
2 |
| IMS Nanofabrication GmbH | 59 |
2 |
| Param Corporation | 8 |
2 |
| Hitachi High-Tech Corporation | 5364 |
2 |
| Thermo Electron Scientific Instruments LLC | 191 |
1 |
| Advantest Corporation | 1786 |
1 |
| Board of Trustees of Michigan State University | 1191 |
1 |
| FEI Company | 950 |
1 |
| Huazhong University of Science and Technology | 1065 |
1 |
| KLA-Tencor Corporation | 2544 |
1 |
| Nfab Limited | 3 |
1 |
| Topcon Corporation | 1092 |
1 |
| Carl Zeiss MultiSEM GmbH | 139 |
1 |
| Other owners | 0 |