- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 37/285 - Emission microscopes, e.g. field-emission microscopes
Patent holdings for IPC class H01J 37/285
Total number of patents in this class: 163
10-year publication summary
|
35
|
18
|
11
|
18
|
17
|
15
|
9
|
5
|
6
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi High-Tech Corporation | 5343 |
25 |
| FEI Company | 948 |
14 |
| Centre National de La Recherche Scientifique | 10465 |
6 |
| ASML Netherlands B.V. | 7413 |
6 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 43015 |
5 |
| Scienta Omicron AB | 20 |
5 |
| The Regents of the University of California | 19989 |
4 |
| Applied Materials Israel, Ltd. | 614 |
4 |
| Ebara Corporation | 2176 |
4 |
| CAMECA Instruments, Inc. | 18 |
4 |
| IMEC VZW | 1648 |
4 |
| Institut National des Sciences Appliquees de Rouen (insa) | 28 |
4 |
| JEOL Ltd. | 590 |
4 |
| KLA-Tencor Corporation | 2544 |
4 |
| Universite de Rouen Normandie | 110 |
4 |
| Hitachi, Ltd. | 15521 |
3 |
| ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH | 158 |
3 |
| Atomnaut, Inc. | 4 |
3 |
| KLA Corporation | 1581 |
3 |
| Samsung Electronics Co., Ltd. | 147003 |
2 |
| Other owners | 52 |