- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 35/20 - Selection of substances for gas fillings; Means 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: 59
10-year publication summary
|
2
|
2
|
7
|
4
|
4
|
1
|
2
|
1
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ASML Netherlands B.V. | 6816 |
10 |
| General Electric Company | 18133 |
4 |
| Canon Inc. | 36841 |
3 |
| Cymer, Inc. | 109 |
3 |
| Excillum AB | 63 |
3 |
| Gigaphoton Inc. | 1120 |
3 |
| SAES Getters S.p.A. | 338 |
3 |
| Koninklijke Philips Electronics N.V. | 13133 |
2 |
| Electronics and Telecommunications Research Institute | 8830 |
2 |
| Hamamatsu Photonics K.K. | 4161 |
2 |
| Philips Intellectual Property & Standards GmbH | 2395 |
2 |
| Cymer, LLC | 347 |
1 |
| Anritsu Infivis Co., Ltd. | 5 |
1 |
| Beijing Institute of Technology | 337 |
1 |
| Comet Holding AG | 15 |
1 |
| The Doshisha | 229 |
1 |
| Kiwako Sakabe | 1 |
1 |
| KLA-Tencor Corporation | 2574 |
1 |
| Kyoto University | 2732 |
1 |
| Laser Systems & Solutions of Europe | 25 |
1 |
| Other owners | 13 |