- 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: 78
10-year publication summary
|
2
|
4
|
8
|
8
|
6
|
7
|
11
|
9
|
8
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ASML Netherlands B.V. | 7385 |
7 |
| Hitachi High-Tech Corporation | 5310 |
5 |
| Varian Semiconductor Equipment Associates, Inc. | 1231 |
3 |
| The Board of Trustees of the Leland Stanford Junior University | 6408 |
3 |
| Lawrence Livermore National Security, LLC | 1937 |
3 |
| FEI Company | 943 |
3 |
| NuFlare Technology, Inc. | 842 |
3 |
| The University of British Columbia | 1501 |
3 |
| Varian Medical Systems, Inc. | 862 |
3 |
| Freemelt AB | 36 |
3 |
| Hamamatsu Photonics K.K. | 4417 |
2 |
| Axcelis Technologies, Inc. | 409 |
2 |
| Board of Trustees of Michigan State University | 1183 |
2 |
| Energetiq Technology, Inc. | 49 |
2 |
| JEOL Ltd. | 580 |
2 |
| National University Corporation Nara Institute of Science and Technology | 237 |
2 |
| NuFlare Technology America, Inc. | 23 |
2 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6107 |
2 |
| Photo Electron Soul Inc. | 32 |
2 |
| Elve Inc. | 30 |
2 |
| Other owners | 22 |