- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 40/18 - Photoelectric discharge tubes not involving the ionisation of a gas having photo-emissive cathode, e.g. alkaline photoelectric cell with luminescent coatings for influencing the sensitivity of the tube, e.g. by converting the input wavelength
Patent holdings for IPC class H01J 40/18
Total number of patents in this class: 14
10-year publication summary
|
2
|
0
|
1
|
1
|
5
|
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
|
|---|---|---|
| KLA-Tencor Corporation | 2574 |
4 |
| Hamamatsu Photonics K.K. | 4161 |
3 |
| Schlumberger Technology Corporation | 9690 |
2 |
| The Board of Trustees of the Leland Stanford Junior University | 6054 |
1 |
| OSRAM GmbH | 2442 |
1 |
| Carl Zeiss Microscopy GmbH | 1146 |
1 |
| National University Corporation Shimane University | 46 |
1 |
| S-nanotech Co-creation Co., Ltd. | 3 |
1 |
| Other owners | 0 |