- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 35/04 - Electrodes
Patent holdings for IPC class H01J 35/04
Total number of patents in this class: 166
10-year publication summary
|
25
|
11
|
13
|
19
|
13
|
13
|
8
|
9
|
7
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Electronics and Telecommunications Research Institute | 8830 |
11 |
| Nikon Metrology, NV | 69 |
9 |
| Schlumberger Technology Corporation | 9690 |
8 |
| Varian Medical Systems, Inc. | 850 |
8 |
| Canon Inc. | 36841 |
7 |
| Koninklijke Philips Electronics N.V. | 13133 |
5 |
| Tsinghua University | 5426 |
5 |
| Nuctech Company Limited | 1275 |
5 |
| Philips Intellectual Property & Standards GmbH | 2395 |
5 |
| General Electric Company | 18133 |
4 |
| Siemens AG | 24990 |
4 |
| LG Electronics Inc. | 69257 |
4 |
| Shimadzu Corporation | 5791 |
4 |
| Nanovision Technology (Beijing) Co., Ltd | 22 |
4 |
| Siemens Healthineers AG | 5714 |
4 |
| The Regents of the University of California | 18943 |
3 |
| Koninklijke Philips N.V. | 22975 |
3 |
| Hamamatsu Photonics K.K. | 4161 |
3 |
| Excillum AB | 63 |
3 |
| SRI International | 974 |
3 |
| Other owners | 64 |