- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 9/39 - Degassing vessels
Patent holdings for IPC class H01J 9/39
Total number of patents in this class: 30
10-year publication summary
|
1
|
4
|
6
|
2
|
2
|
0
|
0
|
0
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Allstate Garden Supply | 9 |
5 |
| Panasonic Corporation | 20198 |
3 |
| Hitachi, Ltd. | 15364 |
2 |
| OSRAM GmbH | 2393 |
2 |
| Eden Park Illumination | 3 |
2 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6272 |
2 |
| Metro Marine LLC | 7 |
2 |
| International Business Machines Corporation | 60753 |
1 |
| Electronics and Telecommunications Research Institute | 9248 |
1 |
| Cardiac Pacemakers, Inc. | 2984 |
1 |
| ASML Netherlands B.V. | 7286 |
1 |
| Central Glass Company, Limited | 1260 |
1 |
| Energy Resources International Co., Ltd. | 5 |
1 |
| Hoya Candeo Optronics Corporation | 37 |
1 |
| ULVAC, Inc. | 1388 |
1 |
| Varex Imaging Corporation | 296 |
1 |
| Fujian Super Tech Advanced Material.co.,ltd. | 8 |
1 |
| Kochi Fel Co., Ltd. | 6 |
1 |
| Onizuka Glass Co. Ltd. | 1 |
1 |
| Other owners | 0 |