- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 37/29 - Reflection microscopes
Patent holdings for IPC class H01J 37/29
Total number of patents in this class: 118
10-year publication summary
|
15
|
9
|
12
|
16
|
6
|
12
|
8
|
5
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi High-Tech Corporation | 5310 |
19 |
| ASML Netherlands B.V. | 7385 |
11 |
| Hitachi High-Technologies Corporation | 2004 |
9 |
| Ebara Corporation | 2169 |
7 |
| International Business Machines Corporation | 61228 |
5 |
| Applied Materials Israel, Ltd. | 613 |
5 |
| Carl Zeiss MultiSEM GmbH | 134 |
5 |
| Hitachi High-Tech Science Corporation | 290 |
4 |
| Carl Zeiss Microscopy GmbH | 1203 |
4 |
| KLA-Tencor Corporation | 2544 |
4 |
| NuFlare Technology, Inc. | 842 |
4 |
| Protochips, Inc. | 76 |
4 |
| The Board of Trustees of the Leland Stanford Junior University | 6408 |
3 |
| Integrated Dynamic Electron Solutions, Inc. | 18 |
3 |
| KLA Corporation | 1549 |
3 |
| Hamamatsu Photonics K.K. | 4417 |
2 |
| Toto Ltd. | 1177 |
2 |
| The University of British Columbia | 1501 |
2 |
| Hermes Microvision Incorporated B.V. | 124 |
2 |
| Centre National de La Recherche Scientifique | 10418 |
1 |
| Other owners | 19 |