- 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: 46
10-year publication summary
|
2
|
1
|
0
|
1
|
0
|
0
|
0
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FEI Company | 1003 |
4 |
| KLA-Tencor Corporation | 2528 |
3 |
| Micromass UK Limited | 1122 |
3 |
| JEOL Ltd. | 604 |
2 |
| Sony Corporation | 30735 |
1 |
| The Regents of the University of California | 20315 |
1 |
| Canon Inc. | 41306 |
1 |
| Centre National de La Recherche Scientifique | 10726 |
1 |
| Toshiba Corporation | 12550 |
1 |
| Hitachi, Ltd. | 15745 |
1 |
| Applied Materials Israel, Ltd. | 622 |
1 |
| Lockheed Martin Corporation | 3290 |
1 |
| Aptina Imaging Corporation | 428 |
1 |
| Agilent Technologies, Inc. | 2648 |
1 |
| Harris Corporation | 1372 |
1 |
| Hamamatsu Photonics K.K. | 4531 |
1 |
| Searete LLC | 271 |
1 |
| CEDES AG | 86 |
1 |
| Decision Sciences International Corporation | 81 |
1 |
| Electron Optica, Inc. | 5 |
1 |
| Other owners | 18 |