- 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: 125
10-year publication summary
|
10
|
15
|
9
|
12
|
16
|
6
|
12
|
8
|
5
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi High-Tech Corporation | 4424 |
19 |
| Ebara Corporation | 1951 |
12 |
| ASML Netherlands B.V. | 6816 |
11 |
| Hitachi High-Technologies Corporation | 2034 |
9 |
| International Business Machines Corporation | 60644 |
5 |
| Applied Materials Israel, Ltd. | 549 |
5 |
| Carl Zeiss MultiSEM GmbH | 85 |
5 |
| Hitachi High-Tech Science Corporation | 326 |
4 |
| Carl Zeiss Microscopy GmbH | 1146 |
4 |
| KLA-Tencor Corporation | 2574 |
4 |
| NuFlare Technology, Inc. | 770 |
4 |
| Protochips, Inc. | 71 |
4 |
| The Board of Trustees of the Leland Stanford Junior University | 6054 |
3 |
| Integrated Dynamic Electron Solutions, Inc. | 16 |
3 |
| Hermes Microvision Incorporated B.V. | 129 |
3 |
| Hamamatsu Photonics K.K. | 4161 |
2 |
| Toto Ltd. | 1096 |
2 |
| The University of British Columbia | 1432 |
2 |
| KLA Corporation | 1223 |
2 |
| Centre National de La Recherche Scientifique | 9632 |
1 |
| Other owners | 21 |