- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 3/12 - Arrangements for controlling cross-section of ray or beam; Arrangements 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: 13
10-year publication summary
|
3
|
2
|
3
|
0
|
0
|
0
|
1
|
0
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Applied Materials, Inc. | 16587 |
2 |
| Hitachi High-Tech Science Corporation | 326 |
1 |
| Massachusetts Institute of Technology | 9795 |
1 |
| Axcelis Technologies, Inc. | 429 |
1 |
| Huazhong University of Science and Technology | 930 |
1 |
| Intelligent Virus Imaging Inc. | 39 |
1 |
| JEOL Ltd. | 556 |
1 |
| National University of Singapore | 2228 |
1 |
| Paul Scherrer Institut | 299 |
1 |
| Ramot at Tel-Aviv University Ltd. | 1370 |
1 |
| Triad National Security, LLC | 580 |
1 |
| Hitachi High-Tech Corporation | 4424 |
1 |
| Other owners | 0 |