- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 3/40 - Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electronsArrangements for velocity or mass selection
Patent holdings for IPC class H01J 3/40
Total number of patents in this class: 21
10-year publication summary
|
1
|
2
|
0
|
1
|
2
|
4
|
0
|
1
|
3
|
0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Trustees of Indiana University | 733 |
3 |
| DH Technologies Development Pte. Ltd. | 1100 |
3 |
| KLA-Tencor Corporation | 2544 |
2 |
| Alpine Quantum Technologies GmbH | 20 |
2 |
| MOBILion Systems, Inc. | 47 |
2 |
| Infineon Technologies Austria AG | 2145 |
1 |
| Thermo Finnigan LLC | 637 |
1 |
| Shimadzu Corporation | 6163 |
1 |
| Axcelis Technologies, Inc. | 408 |
1 |
| Nanofilm Technologies International Pte Ltd | 12 |
1 |
| Raith GmbH | 10 |
1 |
| Centre National de La Recherche Scientifique (cnrs) | 3121 |
1 |
| Modern Electron, Inc. | 16 |
1 |
| Derkwoo Semitech Co., Ltd. | 6 |
1 |
| Other owners | 0 |