- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 1/52 - Screens for shielding; Guides for influencing the discharge; Masks interposed in the electron stream
Patent holdings for IPC class H01J 1/52
Total number of patents in this class: 40
10-year publication summary
|
2
|
1
|
3
|
1
|
2
|
0
|
1
|
1
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hon Hai Precision Industry Co., Ltd. | 4157 |
2 |
| Massachusetts Institute of Technology | 9795 |
2 |
| Tsinghua University | 5426 |
2 |
| ECO Cath-Lab Systems, Inc. | 11 |
2 |
| MKS Instruments, Inc. | 698 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| Samsung Display Co., Ltd. | 30585 |
1 |
| The Regents of the University of California | 18943 |
1 |
| Panasonic Corporation | 20786 |
1 |
| Koninklijke Philips Electronics N.V. | 13133 |
1 |
| Applied Materials, Inc. | 16587 |
1 |
| Electronics and Telecommunications Research Institute | 8830 |
1 |
| Nikon Corporation | 7162 |
1 |
| ASML Netherlands B.V. | 6816 |
1 |
| Mitsubishi Rayon Co., Ltd. | 1003 |
1 |
| Mitsubishi Chemical Corporation | 4313 |
1 |
| OSRAM Opto Semiconductors GmbH | 3390 |
1 |
| Axcelis Technologies, Inc. | 429 |
1 |
| Hyundai Mobis Co., Ltd. | 2668 |
1 |
| Jefferson Science Associates, LLC | 106 |
1 |
| Other owners | 15 |