- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 33/02 - Discharge tubes with provision for emergence of electrons or ions from the vesselLenard tubes Details
Patent holdings for IPC class H01J 33/02
Total number of patents in this class: 56
10-year publication summary
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1
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1
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3
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4
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1
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1
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2
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1
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1
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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
|
|---|---|---|
| Global Plasma Solutions, Inc. | 76 |
7 |
| Tetra Laval Holdings & Finance S.A. | 2150 |
5 |
| Schlumberger Technology Corporation | 10745 |
4 |
| Schlumberger Canada Limited | 7298 |
4 |
| Schlumberger Technology B.v. | 5163 |
4 |
| Schlumberger Holdings Limited | 2819 |
4 |
| Hitachi Zosen Corporation | 617 |
4 |
| Prad Research and Development Limited | 2693 |
4 |
| Services Petroliers Schlumberger | 5788 |
4 |
| The Board of Trustees of the Leland Stanford Junior University | 6424 |
2 |
| Krones AG | 2190 |
2 |
| The University of British Columbia | 1502 |
2 |
| Mitsubishi Electric Corporation | 46160 |
1 |
| Agilent Technologies, Inc. | 2636 |
1 |
| Ben-Gurion University of the Negev Research and Development Authority | 203 |
1 |
| KHS GmbH | 1423 |
1 |
| Nuctech Company Limited | 1422 |
1 |
| UTC Fire & Security Corporation | 92 |
1 |
| Consorzio di Ricerca Hypatia | 3 |
1 |
| GE Precision Healthcare LLC | 5468 |
1 |
| Other owners | 2 |