- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/58 - Amplifiers using transit-time effect in tubes or semiconductor devices using travelling-wave tubes
Patent holdings for IPC class H03F 3/58
Total number of patents in this class: 32
10-year publication summary
|
6
|
2
|
0
|
4
|
2
|
1
|
2
|
2
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Wisconsin Alumni Research Foundation | 3898 |
7 |
| Tesat-Spacecom GmbH & Co. KG | 76 |
6 |
| Thales SA | 2386 |
3 |
| Airbus Defence and Space Limited | 185 |
2 |
| UNM Rainforest Innovations | 488 |
2 |
| The Regents of the University of California | 20745 |
1 |
| Ericsson | 22717 |
1 |
| Mitsubishi Electric Corporation | 48018 |
1 |
| Huawei Technologies Co., Ltd. | 123385 |
1 |
| Raytheon Company | 8448 |
1 |
| Centre National d'Etudes Spatiales (C.N.E.S.) | 118 |
1 |
| InnoSys, Inc. | 19 |
1 |
| Keysight Technologies, Inc. | 1263 |
1 |
| Lancaster University Business Enterprises Limited | 40 |
1 |
| NEC Network and Sensor Systems, Ltd. | 49 |
1 |
| Semtech Corporation | 370 |
1 |
| University of Lancaster | 55 |
1 |
| Other owners | 0 |