- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 3/12 - Arrangements for controlling cross-section of ray or beamArrangements for correcting aberration of beam, e.g. due to lenses
Patent holdings for IPC class H01J 3/12
Total number of patents in this class: 12
10-year publication summary
|
3
|
0
|
0
|
0
|
1
|
0
|
2
|
0
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0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Applied Materials, Inc. | 20552 |
2 |
| Axcelis Technologies, Inc. | 422 |
1 |
| Huazhong University of Science and Technology | 1142 |
1 |
| Intelligent Virus Imaging Inc. | 30 |
1 |
| JEOL Ltd. | 625 |
1 |
| National University of Singapore | 2602 |
1 |
| Paul Scherrer Institut | 274 |
1 |
| Ramot at Tel-Aviv University Ltd. | 1554 |
1 |
| Triad National Security, LLC | 636 |
1 |
| Hitachi High-Tech Corporation | 5957 |
1 |
| Hitachi High-Tech Analysis Corporation | 286 |
1 |
| Other owners | 0 |