- 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 electrons; Arrangements for velocity or mass selection
Patent holdings for IPC class H01J 3/40
Total number of patents in this class: 20
10-year publication summary
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0
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1
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2
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0
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1
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2
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4
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0
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1
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2
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Trustees of Indiana University | 630 |
3 |
| DH Technologies Development Pte. Ltd. | 938 |
3 |
| KLA-Tencor Corporation | 2574 |
2 |
| Alpine Quantum Technologies GmbH | 15 |
2 |
| MOBILion Systems, Inc. | 40 |
2 |
| Infineon Technologies Austria AG | 1954 |
1 |
| Thermo Finnigan LLC | 625 |
1 |
| Shimadzu Corporation | 5791 |
1 |
| Axcelis Technologies, Inc. | 429 |
1 |
| Nanofilm Technologies International Pte Ltd | 12 |
1 |
| Raith GmbH | 9 |
1 |
| Centre National de La Recherche Scientifique (cnrs) | 3191 |
1 |
| Modern Electron, Inc. | 40 |
1 |
| Other owners | 0 |