- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/02 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only
Patent holdings for IPC class H03F 3/02
Total number of patents in this class: 23
10-year publication summary
|
2
|
2
|
2
|
3
|
2
|
5
|
2
|
2
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 24342 |
2 |
| Advanced Fusion Systems LLC | 67 |
2 |
| Echowell Electronic Co., Ltd. | 12 |
2 |
| Psemi Corporation | 989 |
2 |
| Echowell Electronic Co., Ltd. | 3 |
2 |
| Samsung Electronics Co., Ltd. | 144143 |
1 |
| Qualcomm Incorporated | 84501 |
1 |
| ZTE Corporation | 42015 |
1 |
| Thales SA | 2324 |
1 |
| Newport Media, Inc. | 35 |
1 |
| Hamamatsu Photonics K.K. | 4388 |
1 |
| University of Southern California | 2104 |
1 |
| Axiom Microdevices, Inc. | 26 |
1 |
| Roxtec AB | 261 |
1 |
| Skyworks Solutions, Inc. | 3701 |
1 |
| Steven M. Fryette, DBA Steven Fryette Design, Inc. | 6 |
1 |
| Labrador Diagnostics LLC | 279 |
1 |
| Meewang Inc. | 36 |
1 |
| Other owners | 0 |