- 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: 32
10-year publication summary
|
1
|
2
|
3
|
1
|
3
|
3
|
1
|
4
|
3
|
1
|
| 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 |
7 |
| Hermes Microvision Incorporated B.V. | 129 |
4 |
| Hitachi High-Technologies Corporation | 2034 |
3 |
| KLA Corporation | 1223 |
3 |
| IMS Nanofabrication GmbH | 56 |
2 |
| Param Corporation | 8 |
2 |
| Nikon Corporation | 7162 |
1 |
| Thermo Electron Scientific Instruments LLC | 169 |
1 |
| Advantest Corporation | 1939 |
1 |
| Board of Trustees of Michigan State University | 1141 |
1 |
| FEI Company | 851 |
1 |
| Huazhong University of Science and Technology | 930 |
1 |
| KLA-Tencor Corporation | 2574 |
1 |
| Nfab Limited | 5 |
1 |
| Topcon Corporation | 979 |
1 |
| Carl Zeiss MultiSEM GmbH | 85 |
1 |
| Hitachi High-Tech Corporation | 4424 |
1 |
| Other owners | 0 |