- 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: 176
10-year publication summary
|
13
|
19
|
13
|
13
|
8
|
9
|
9
|
6
|
6
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Electronics and Telecommunications Research Institute | 9435 |
11 |
| Nikon Metrology, NV | 65 |
9 |
| Varian Medical Systems, Inc. | 887 |
9 |
| Schlumberger Technology Corporation | 11274 |
8 |
| Canon Inc. | 41672 |
7 |
| Koninklijke Philips Electronics N.V. | 8370 |
5 |
| Tsinghua University | 6070 |
5 |
| Nanovision Technology (Beijing) Co., Ltd | 34 |
5 |
| Nuctech Company Limited | 1434 |
5 |
| Siemens Healthineers AG | 6889 |
5 |
| Philips Intellectual Property & Standards GmbH | 1771 |
5 |
| Siemens AG | 24278 |
4 |
| LG Electronics Inc. | 74388 |
4 |
| Shimadzu Corporation | 6281 |
4 |
| Varex Imaging Corporation | 318 |
4 |
| The Regents of the University of California | 20378 |
3 |
| Koninklijke Philips N.V. | 25365 |
3 |
| Hamamatsu Photonics K.K. | 4565 |
3 |
| Excillum AB | 74 |
3 |
| SRI International | 996 |
3 |
| Other owners | 71 |