- 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 vessel; Lenard tubes - Details
Patent holdings for IPC class H01J 33/02
Total number of patents in this class: 55
10-year publication summary
3
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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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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
|
---|---|---|
Global Plasma Solutions, Inc. | 68 |
6 |
Tetra Laval Holdings & Finance S.A. | 2007 |
5 |
Schlumberger Technology Corporation | 9690 |
4 |
Schlumberger Canada Limited | 6913 |
4 |
Schlumberger Technology B.v. | 4951 |
4 |
Schlumberger Holdings Limited | 2947 |
4 |
Hitachi Zosen Corporation | 609 |
4 |
Prad Research and Development Limited | 2696 |
4 |
Services Petroliers Schlumberger | 5426 |
4 |
The Board of Trustees of the Leland Stanford Junior University | 6054 |
2 |
Krones AG | 2037 |
2 |
The University of British Columbia | 1432 |
2 |
General Electric Company | 18133 |
1 |
Mitsubishi Electric Corporation | 43934 |
1 |
Agilent Technologies, Inc. | 2744 |
1 |
Ben-Gurion University of the Negev Research and Development Authority | 228 |
1 |
KHS GmbH | 1381 |
1 |
Nuctech Company Limited | 1275 |
1 |
UTC Fire & Security Corporation | 139 |
1 |
Consorzio di Ricerca Hypatia | 3 |
1 |
Other owners | 2 |