- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/55 - Amplifiers using transit-time effect in tubes or semiconductor devices with semiconductor devices only
Patent holdings for IPC class H03F 3/55
Total number of patents in this class: 11
10-year publication summary
0
|
3
|
4
|
1
|
1
|
0
|
0
|
0
|
1
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sumitomo Electric Industries, Ltd. | 14131 |
3 |
The United States of America as represented by the Secretary of the Navy | 2734 |
1 |
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4569 |
1 |
Keysight Technologies, Inc. | 1170 |
1 |
North Carolina a & T State University | 20 |
1 |
Semtech Corporation | 339 |
1 |
The United States of America as represented by Secretary of the Navy | 148 |
1 |
Space Systems/Loral, LLC | 22 |
1 |
Maxar Space LLC | 236 |
1 |
Other owners | 0 |