- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 37/075 - Electron guns using thermionic emission from cathodes heated by particle bombardment or by irradiation, e.g. by laser
Patent holdings for IPC class H01J 37/075
Total number of patents in this class: 72
10-year publication summary
|
5
|
2
|
4
|
8
|
8
|
6
|
7
|
11
|
9
|
4
|
| 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 |
7 |
| Hitachi High-Tech Corporation | 4424 |
5 |
| Varian Semiconductor Equipment Associates, Inc. | 1282 |
3 |
| The Board of Trustees of the Leland Stanford Junior University | 6054 |
3 |
| Lawrence Livermore National Security, LLC | 1834 |
3 |
| FEI Company | 851 |
3 |
| NuFlare Technology, Inc. | 770 |
3 |
| The University of British Columbia | 1432 |
3 |
| Varian Medical Systems, Inc. | 850 |
3 |
| Freemelt AB | 32 |
3 |
| Axcelis Technologies, Inc. | 429 |
2 |
| Board of Trustees of Michigan State University | 1141 |
2 |
| JEOL Ltd. | 556 |
2 |
| National University Corporation Nara Institute of Science and Technology | 275 |
2 |
| NuFlare Technology America, Inc. | 21 |
2 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6132 |
2 |
| Photo Electron Soul Inc. | 27 |
2 |
| Hitachi High-Technologies Corporation | 2034 |
1 |
| Electronics and Telecommunications Research Institute | 8830 |
1 |
| The General Hospital Corporation | 4517 |
1 |
| Other owners | 19 |