- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 35/14 - Arrangements for concentrating, focusing, or directing the cathode ray
Patent holdings for IPC class H01J 35/14
Total number of patents in this class: 563
10-year publication summary
|
48
|
34
|
44
|
55
|
46
|
51
|
52
|
28
|
30
|
15
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koninklijke Philips N.V. | 22975 |
30 |
| Varex Imaging Corporation | 294 |
27 |
| General Electric Company | 18133 |
25 |
| Excillum AB | 63 |
25 |
| Koninklijke Philips Electronics N.V. | 13133 |
24 |
| Hamamatsu Photonics K.K. | 4161 |
24 |
| Nuctech Company Limited | 1275 |
21 |
| Philips Intellectual Property & Standards GmbH | 2395 |
20 |
| Tsinghua University | 5426 |
16 |
| Siemens Healthineers AG | 5714 |
13 |
| Schlumberger Technology Corporation | 9690 |
12 |
| Electronics and Telecommunications Research Institute | 8830 |
12 |
| Shimadzu Corporation | 5791 |
10 |
| Sigray, Inc. | 68 |
10 |
| ProTom International Holding Corporation | 62 |
10 |
| Canon Electron Tubes & Devices Co., Ltd. | 154 |
9 |
| American Science and Engineering, Inc. | 112 |
8 |
| Canon Anelva Corporation | 676 |
7 |
| MOXTEK, Inc. | 219 |
7 |
| Rigaku Corporation | 379 |
6 |
| Other owners | 247 |