- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 3/14 - Arrangements for focusing or reflecting ray or beam
Patent holdings for IPC class H01J 3/14
Total number of patents in this class: 404
10-year publication summary
|
20
|
11
|
11
|
7
|
2
|
4
|
3
|
2
|
2
|
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 |
14 |
| ASML Netherlands B.V. | 6816 |
12 |
| Raytheon Company | 8535 |
10 |
| NuFlare Technology, Inc. | 770 |
10 |
| Varian Semiconductor Equipment Associates, Inc. | 1282 |
9 |
| Microvision, Inc. | 381 |
8 |
| Carl Zeiss Microscopy GmbH | 1146 |
7 |
| FEI Company | 851 |
7 |
| The Regents of the University of California | 18943 |
6 |
| Canon Inc. | 36841 |
6 |
| Applied Materials, Inc. | 16587 |
6 |
| Sony Semiconductor Solutions Corporation | 8770 |
6 |
| Sony Corporation | 32931 |
5 |
| Hitachi High-Tech Science Corporation | 326 |
5 |
| Ricoh Company, Ltd. | 13266 |
5 |
| Shimadzu Corporation | 5791 |
5 |
| JEOL Ltd. | 556 |
5 |
| Rearden, LLC | 116 |
5 |
| University of Washington | 2157 |
5 |
| Olympus Corporation | 13667 |
4 |
| Other owners | 264 |