- 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: 34
10-year publication summary
|
1
|
3
|
1
|
2
|
0
|
2
|
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. | 4039 |
2 |
| Massachusetts Institute of Technology | 10036 |
2 |
| Tsinghua University | 5890 |
2 |
| MKS Instruments, Inc. | 655 |
2 |
| Samsung Electronics Co., Ltd. | 145416 |
1 |
| Samsung Display Co., Ltd. | 34539 |
1 |
| The Regents of the University of California | 19868 |
1 |
| Panasonic Corporation | 20136 |
1 |
| Electronics and Telecommunications Research Institute | 9367 |
1 |
| Nikon Corporation | 7158 |
1 |
| ASML Netherlands B.V. | 7361 |
1 |
| OSRAM Opto Semiconductors GmbH | 3313 |
1 |
| Axcelis Technologies, Inc. | 407 |
1 |
| ECO Cath-Lab Systems, Inc. | 11 |
1 |
| Hyundai Mobis Co., Ltd. | 3148 |
1 |
| Jefferson Science Associates, LLC | 105 |
1 |
| KLA-Tencor Corporation | 2545 |
1 |
| Lucidity Lights, Inc. | 34 |
1 |
| Miltec Corporation | 11 |
1 |
| Morgan Stanley Senior Funding, Inc., AS Agent | 1592 |
1 |
| Other owners | 10 |