- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 1/142 - Solid thermionic cathodes characterised by the material with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material
Patent holdings for IPC class H01J 1/142
Total number of patents in this class: 8
10-year publication summary
|
1
|
1
|
2
|
1
|
0
|
2
|
0
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Regents of the University of California | 18943 |
2 |
| Koninklijke Philips N.V. | 22975 |
1 |
| Beijing University of Technology | 437 |
1 |
| Colorado School of Mines | 164 |
1 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1102 |
1 |
| Philips Deutschland GmbH | 182 |
1 |
| Triad National Security, LLC | 580 |
1 |
| Other owners | 0 |