- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 40/00 - Photoelectric discharge tubes not involving the ionisation of a gas
Patent holdings for IPC class H01J 40/00
Total number of patents in this class: 48
10-year publication summary
|
1
|
2
|
1
|
0
|
1
|
0
|
0
|
0
|
1
|
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
|
|---|---|---|
| FEI Company | 898 |
4 |
| KLA-Tencor Corporation | 2550 |
3 |
| Micromass UK Limited | 1120 |
3 |
| JEOL Ltd. | 562 |
2 |
| ReVera Incorporated | 13 |
2 |
| Sony Corporation | 31518 |
1 |
| The Regents of the University of California | 19572 |
1 |
| Canon Inc. | 38296 |
1 |
| Centre National de La Recherche Scientifique | 10140 |
1 |
| Toshiba Corporation | 12076 |
1 |
| Hitachi, Ltd. | 15247 |
1 |
| Applied Materials Israel, Ltd. | 579 |
1 |
| Lockheed Martin Corporation | 3306 |
1 |
| Aptina Imaging Corporation | 526 |
1 |
| Agilent Technologies, Inc. | 2683 |
1 |
| Harris Corporation | 1507 |
1 |
| Searete LLC | 319 |
1 |
| CEDES AG | 77 |
1 |
| Decision Sciences International Corporation | 79 |
1 |
| Electron Optica, Inc. | 5 |
1 |
| Other owners | 19 |