- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/28 - Push-pull amplifiers; Phase-splitters therefor with tubes only
Patent holdings for IPC class H03F 3/28
Total number of patents in this class: 6
10-year publication summary
|
2
|
0
|
0
|
2
|
1
|
0
|
0
|
1
|
0
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toshiba Corporation | 12017 |
1 |
| Mediatek Inc. | 4584 |
1 |
| Semiconductor Components Industries, L.L.C. | 5345 |
1 |
| Blackstar Amplification Ltd | 23 |
1 |
| Gibson Brands, Inc. | 76 |
1 |
| Peavey Electronics Corporation | 127 |
1 |
| Other owners | 0 |