- 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: 59
10-year publication summary
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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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1
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2
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Global Plasma Solutions, Inc. | 74 |
8 |
| Tetra Laval Holdings & Finance S.A. | 2267 |
7 |
| Schlumberger Technology Corporation | 11961 |
4 |
| Schlumberger Canada Limited | 7616 |
4 |
| Schlumberger Technology B.v. | 5289 |
4 |
| Schlumberger Holdings Limited | 2660 |
4 |
| Hitachi Zosen Corporation | 586 |
4 |
| Prad Research and Development Limited | 2642 |
4 |
| Services Petroliers Schlumberger | 6024 |
4 |
| The Board of Trustees of the Leland Stanford Junior University | 6722 |
2 |
| Krones AG | 2304 |
2 |
| The University of British Columbia | 1557 |
2 |
| Mitsubishi Electric Corporation | 48409 |
1 |
| Agilent Technologies, Inc. | 2643 |
1 |
| Ben-Gurion University of the Negev Research and Development Authority | 174 |
1 |
| KHS GmbH | 1455 |
1 |
| Nuctech Company Limited | 1478 |
1 |
| UTC Fire & Security Corporation | 91 |
1 |
| Consorzio di Ricerca Hypatia | 3 |
1 |
| GE Precision Healthcare LLC | 5808 |
1 |
| Other owners | 2 |