- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 1/52 - Screens for shieldingGuides for influencing the dischargeMasks interposed in the electron stream
Patent holdings for IPC class H01J 1/52
Total number of patents in this class: 33
10-year publication summary
|
1
|
3
|
1
|
2
|
0
|
1
|
1
|
0
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0
|
0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hon Hai Precision Industry Co., Ltd. | 4024 |
2 |
| Massachusetts Institute of Technology | 10150 |
2 |
| Tsinghua University | 6023 |
2 |
| MKS Instruments, Inc. | 632 |
2 |
| Samsung Electronics Co., Ltd. | 149198 |
1 |
| Samsung Display Co., Ltd. | 36317 |
1 |
| The Regents of the University of California | 20303 |
1 |
| Panasonic Corporation | 19952 |
1 |
| Electronics and Telecommunications Research Institute | 9359 |
1 |
| Nikon Corporation | 7299 |
1 |
| ASML Netherlands B.V. | 7593 |
1 |
| OSRAM Opto Semiconductors GmbH | 3286 |
1 |
| Axcelis Technologies, Inc. | 424 |
1 |
| ECO Cath-Lab Systems, Inc. | 11 |
1 |
| Hyundai Mobis Co., Ltd. | 3309 |
1 |
| Jefferson Science Associates, LLC | 104 |
1 |
| KLA-Tencor Corporation | 2537 |
1 |
| Lucidity Lights, Inc. | 33 |
1 |
| Miltec Corporation | 11 |
1 |
| Morgan Stanley Senior Funding, Inc., AS Agent | 1534 |
1 |
| Other owners | 9 |