- 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: 587
10-year publication summary
|
34
|
44
|
55
|
46
|
51
|
52
|
32
|
31
|
39
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamamatsu Photonics K.K. | 4405 |
30 |
| Koninklijke Philips N.V. | 24718 |
29 |
| Varex Imaging Corporation | 304 |
28 |
| Excillum AB | 70 |
27 |
| GE Precision Healthcare LLC | 5449 |
27 |
| Koninklijke Philips Electronics N.V. | 9765 |
23 |
| Nuctech Company Limited | 1418 |
21 |
| Philips Intellectual Property & Standards GmbH | 1947 |
20 |
| Siemens Healthineers AG | 6615 |
17 |
| Tsinghua University | 5890 |
16 |
| Schlumberger Technology Corporation | 10673 |
12 |
| Electronics and Telecommunications Research Institute | 9367 |
12 |
| Sigray, Inc. | 78 |
11 |
| ProTom International Holding Corporation | 60 |
10 |
| Shanghai United Imaging Healthcare Co., Ltd. | 1895 |
9 |
| Varian Medical Systems, Inc. | 863 |
9 |
| Canon Electron Tubes & Devices Co., Ltd. | 164 |
9 |
| Shimadzu Corporation | 6155 |
8 |
| American Science and Engineering, Inc. | 105 |
8 |
| Canon Anelva Corporation | 686 |
8 |
| Other owners | 253 |