- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 3/07 - Arrangements for controlling convergence of a plurality of beams
Patent holdings for IPC class H01J 3/07
Total number of patents in this class: 6
10-year publication summary
1
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0
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0
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1
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0
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0
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0
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0
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0
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0
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2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hitachi, Ltd. | 16452 |
1 |
Varian Semiconductor Equipment Associates, Inc. | 1282 |
1 |
FEI Company | 851 |
1 |
Jiddtek Pty Ltd | 1 |
1 |
NuFlare Technology, Inc. | 770 |
1 |
Standard Beam Company, Inc. | 1 |
1 |
Other owners | 0 |