- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 27/26 - Ion sourcesIon guns using surface ionisation, e.g. field effect ion sources, thermionic ion sources
Patent holdings for IPC class H01J 27/26
Total number of patents in this class: 176
10-year publication summary
|
18
|
11
|
7
|
11
|
6
|
5
|
4
|
2
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi High-Technologies Corporation | 2018 |
27 |
| ALIS Corporation | 35 |
26 |
| Carl Zeiss Microscopy, LLC | 27 |
10 |
| Massachusetts Institute of Technology | 9921 |
9 |
| Bruker Scientific LLC | 75 |
9 |
| Hitachi High-Tech Corporation | 5065 |
8 |
| Sharp Corporation | 10194 |
7 |
| Centre National de La Recherche Scientifique | 10124 |
4 |
| Carl Zeiss NTS, LLC | 27 |
4 |
| Applied Materials, Inc. | 17779 |
3 |
| Varian Semiconductor Equipment Associates, Inc. | 1250 |
3 |
| 38th Research Institute, China Electronics Technology Group Corporation | 46 |
3 |
| ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH | 153 |
3 |
| Hitachi High-Tech Science Corporation | 323 |
2 |
| Carl Zeiss Microscopy GmbH | 1175 |
2 |
| PerkinElmer Health Sciences Canada, Inc. | 68 |
2 |
| ULVAC-PHI, Inc. | 10 |
2 |
| Université Paris-saclay | 496 |
2 |
| Hitachi, Ltd. | 15239 |
1 |
| Seagate Technology LLC | 3929 |
1 |
| Other owners | 48 |