- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 61/09 - Hollow cathodes
Patent holdings for IPC class H01J 61/09
Total number of patents in this class: 19
10-year publication summary
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0
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2
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0
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0
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0
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1
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0
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1
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0
|
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
|
|---|---|---|
| Blackburn Microtech Solutions Limited | 4 |
4 |
| KLA-Tencor Corporation | 2574 |
2 |
| PLANSEE SE | 233 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| Toshiba Corporation | 12017 |
1 |
| Hamamatsu Photonics K.K. | 4161 |
1 |
| The Board of Trustees of the University of Illinois | 2623 |
1 |
| EI LIGHTING Co., Ltd. | 8 |
1 |
| Nu Eco Engineering Co., Ltd. | 31 |
1 |
| PerkinElmer Health Sciences, Inc. | 274 |
1 |
| SAES Getters S.p.A. | 338 |
1 |
| Senko Co., Ltd. | 4 |
1 |
| Toshiba Materials Co., Ltd. | 600 |
1 |
| PerkinElmer Singapore PTE. LTD. | 50 |
1 |
| Other owners | 0 |