- 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: 52
10-year publication summary
|
4
|
1
|
2
|
1
|
0
|
1
|
0
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FEI Company | 851 |
4 |
| KLA-Tencor Corporation | 2574 |
3 |
| Micromass UK Limited | 1121 |
3 |
| JEOL Ltd. | 556 |
2 |
| ReVera Incorporated | 14 |
2 |
| Sony Corporation | 32931 |
1 |
| The Regents of the University of California | 18943 |
1 |
| Canon Inc. | 36841 |
1 |
| Centre National de La Recherche Scientifique | 9632 |
1 |
| Toshiba Corporation | 12017 |
1 |
| Applied Materials Israel, Ltd. | 549 |
1 |
| Lockheed Martin Corporation | 3406 |
1 |
| Aptina Imaging Corporation | 658 |
1 |
| Agilent Technologies, Inc. | 2744 |
1 |
| Board of Regents, The University of Texas System | 5370 |
1 |
| Harris Corporation | 1591 |
1 |
| Searete LLC | 341 |
1 |
| Applera Corporation | 249 |
1 |
| Axcelis Technologies, Inc. | 429 |
1 |
| B-nano Ltd. | 12 |
1 |
| Other owners | 23 |