- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 35/20 - Selection of substances for gas fillingsMeans for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
Patent holdings for IPC class H01J 35/20
Total number of patents in this class: 57
10-year publication summary
|
2
|
7
|
4
|
4
|
1
|
2
|
1
|
2
|
3
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ASML Netherlands B.V. | 7301 |
6 |
| Varex Imaging Corporation | 300 |
4 |
| Canon Inc. | 39365 |
3 |
| Excillum AB | 68 |
3 |
| SAES Getters S.p.A. | 318 |
3 |
| General Electric Company | 13823 |
2 |
| Koninklijke Philips Electronics N.V. | 10060 |
2 |
| Electronics and Telecommunications Research Institute | 9319 |
2 |
| Hamamatsu Photonics K.K. | 4382 |
2 |
| Comet Holding AG | 15 |
2 |
| Gigaphoton Inc. | 1214 |
2 |
| Philips Intellectual Property & Standards GmbH | 1989 |
2 |
| GE Precision Healthcare LLC | 5413 |
2 |
| Cymer, LLC | 367 |
1 |
| Cymer, Inc. | 82 |
1 |
| Anritsu Infivis Co., Ltd. | 5 |
1 |
| Beijing Institute of Technology | 368 |
1 |
| The Doshisha | 224 |
1 |
| Kiwako Sakabe | 1 |
1 |
| KLA-Tencor Corporation | 2546 |
1 |
| Other owners | 15 |