- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 35/18 - Windows
Patent holdings for IPC class H01J 35/18
Total number of patents in this class: 243
10-year publication summary
|
25
|
19
|
24
|
14
|
28
|
23
|
35
|
20
|
17
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MOXTEK, Inc. | 219 |
32 |
| Canon Inc. | 36841 |
14 |
| Hamamatsu Photonics K.K. | 4161 |
14 |
| Canon Electron Tubes & Devices Co., Ltd. | 154 |
11 |
| Excillum AB | 63 |
8 |
| HS Foils Oy | 10 |
8 |
| King Fahd University of Petroleum and Minerals | 779 |
7 |
| Sigray, Inc. | 68 |
7 |
| Varex Imaging Corporation | 294 |
6 |
| Canon Kabushiki Kaisha | 6884 |
6 |
| Siemens Healthineers AG | 5714 |
5 |
| Imagine Scientific, Inc. | 22 |
5 |
| General Electric Company | 18133 |
4 |
| The Boeing Company | 19843 |
4 |
| Massachusetts Institute of Technology | 9795 |
4 |
| Canon Anelva Corporation | 676 |
4 |
| Rigaku Corporation | 379 |
4 |
| Varian Medical Systems, Inc. | 850 |
3 |
| Tribo Labs | 13 |
3 |
| AMETEK Finland Oy | 5 |
3 |
| Other owners | 91 |