- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/28 - Push-pull amplifiersPhase-splitters therefor with tubes only
Patent holdings for IPC class H03F 3/28
Total number of patents in this class: 5
10-year publication summary
|
0
|
2
|
1
|
0
|
0
|
1
|
0
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toshiba Corporation | 12779 |
1 |
| Mediatek Inc. | 5589 |
1 |
| Semiconductor Components Industries, L.L.C. | 5263 |
1 |
| Blackstar Amplification Ltd | 24 |
1 |
| Gibson Brands, Inc. | 56 |
1 |
| Other owners | 0 |