- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 1/148 - Solid thermionic cathodes characterised by the material with compounds having metallic conductive properties, e.g. lanthanum boride, as an emissive material
Patent holdings for IPC class H01J 1/148
Total number of patents in this class: 27
10-year publication summary
2
|
2
|
1
|
2
|
4
|
2
|
1
|
2
|
2
|
1
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Denka Company Limited | 2531 |
6 |
NuFlare Technology, Inc. | 836 |
5 |
NuFlare Technology America, Inc. | 23 |
3 |
Applied Physics Technologies, Inc. | 14 |
2 |
Hitachi High-Technologies Corporation | 2006 |
1 |
Lockheed Martin Corporation | 3274 |
1 |
Agency for Defense Development | 429 |
1 |
Colorado School of Mines | 178 |
1 |
Kimball Physics, Inc. | 5 |
1 |
Korea Research Institute of Standards and Science | 671 |
1 |
National Institute for Materials Science | 1109 |
1 |
Param Corporation | 8 |
1 |
The University of Bristol | 250 |
1 |
West Virginia University Board of Governors on Behalf of West Virginia University | 145 |
1 |
Aquasium Technology Limited | 17 |
1 |
Other owners | 0 |