- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 1/16 - Cathodes heated directly by an electric current characterised by the shape
Patent holdings for IPC class H01J 1/16
Total number of patents in this class: 62
10-year publication summary
|
3
|
2
|
4
|
0
|
4
|
1
|
3
|
5
|
5
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denka Company Limited | 2767 |
5 |
| Hamamatsu Photonics K.K. | 4726 |
3 |
| Denki Kagaku Kogyo Kabushiki Kaisha | 568 |
3 |
| Siemens Healthineers AG | 7129 |
3 |
| Hitachi High-Technologies Corporation | 1986 |
2 |
| Lockheed Martin Corporation | 3254 |
2 |
| Applied Physics Technologies, Inc. | 15 |
2 |
| Arcam AB | 200 |
2 |
| Hitachi Zosen Corporation | 586 |
2 |
| Rad Source Technologies, Inc. | 15 |
2 |
| Rapiscan Systems, Inc. | 284 |
2 |
| Canon Electron Tubes & Devices Co., Ltd. | 166 |
2 |
| GE Precision Healthcare LLC | 5808 |
2 |
| Engeniusmicro, LLC | 5 |
2 |
| Qualcomm Incorporated | 93712 |
1 |
| General Electric Company | 13999 |
1 |
| Schlumberger Technology Corporation | 11961 |
1 |
| Schlumberger Canada Limited | 7616 |
1 |
| Schlumberger Technology B.v. | 5289 |
1 |
| Schlumberger Holdings Limited | 2660 |
1 |
| Other owners | 22 |