- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 35/00 - X-ray tubes
Patent holdings for IPC class H01J 35/00
Total number of patents in this class: 264
10-year publication summary
|
15
|
26
|
19
|
14
|
21
|
13
|
9
|
4
|
6
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 18133 |
20 |
| Canon Inc. | 36841 |
13 |
| Schlumberger Technology Corporation | 9690 |
10 |
| Hamamatsu Photonics K.K. | 4161 |
10 |
| Siemens Healthineers AG | 5714 |
9 |
| Koninklijke Philips N.V. | 22975 |
8 |
| The Regents of the University of California | 18943 |
5 |
| Electronics and Telecommunications Research Institute | 8830 |
5 |
| American Science and Engineering, Inc. | 112 |
5 |
| Tribo Labs | 13 |
5 |
| Varex Imaging Corporation | 294 |
4 |
| Canon Electron Tubes & Devices Co., Ltd. | 154 |
4 |
| Wisconsin Alumni Research Foundation | 3774 |
3 |
| Canon Anelva Corporation | 676 |
3 |
| The Institute of Cancer Research: Royal Cancer Hospital | 186 |
3 |
| MOXTEK, Inc. | 219 |
3 |
| NanoRay Biotech Co., Ltd. | 13 |
3 |
| Newton Scientific, Inc. | 5 |
3 |
| Varian Medical Systems, Inc. | 850 |
3 |
| Schlumberger Canada Limited | 6913 |
2 |
| Other owners | 143 |