- 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: 14
10-year publication summary
|
2
|
0
|
0
|
0
|
1
|
0
|
1
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Blackburn Microtech Solutions Limited | 2 |
2 |
| KLA-Tencor Corporation | 2544 |
2 |
| Samsung Electronics Co., Ltd. | 145630 |
1 |
| Toshiba Corporation | 12326 |
1 |
| The Board of Trustees of the University of Illinois | 2689 |
1 |
| EI LIGHTING Co., Ltd. | 8 |
1 |
| Nu Eco Engineering Co., Ltd. | 29 |
1 |
| PerkinElmer Health Sciences, Inc. | 213 |
1 |
| SAES Getters S.p.A. | 323 |
1 |
| Senko Co., Ltd. | 4 |
1 |
| Toshiba Materials Co., Ltd. | 663 |
1 |
| PerkinElmer Singapore PTE. LTD. | 40 |
1 |
| Other owners | 0 |