- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 1/15 - Cathodes heated directly by an electric current
Patent holdings for IPC class H01J 1/15
Total number of patents in this class: 48
10-year publication summary
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5
|
1
|
3
|
5
|
1
|
2
|
3
|
2
|
1
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 18133 |
4 |
| ASML Netherlands B.V. | 6816 |
4 |
| Denki Kagaku Kogyo Kabushiki Kaisha | 680 |
4 |
| Sumitomo Electric Industries, Ltd. | 14131 |
3 |
| Hitachi High-Technologies Corporation | 2034 |
2 |
| The Board of Trustees of the Leland Stanford Junior University | 6054 |
2 |
| GE Medical Systems Global Technology Company, LLC | 299 |
2 |
| NuFlare Technology, Inc. | 770 |
2 |
| NuFlare Technology America, Inc. | 21 |
2 |
| Samsung Display Co., Ltd. | 30585 |
1 |
| Hitachi High-Tech Science Corporation | 326 |
1 |
| Koninklijke Philips Electronics N.V. | 13133 |
1 |
| Thales SA | 2318 |
1 |
| Thermo Finnigan LLC | 625 |
1 |
| Hamamatsu Photonics K.K. | 4161 |
1 |
| Applied Physics Technologies, Inc. | 12 |
1 |
| BAE Systems Information and Electronic Systems Integration Inc. | 1760 |
1 |
| Carl Zeiss NTS, LLC | 27 |
1 |
| Comet AG | 83 |
1 |
| Denka Company Limited | 2189 |
1 |
| Other owners | 12 |