- All sections
- H - Electricity
- H04B - Transmission
- H04B 3/18 - Control of transmissionEqualising characterised by the negative-impedance network used wherein the network comprises semiconductor devices
Patent holdings for IPC class H04B 3/18
Total number of patents in this class: 19
10-year publication summary
|
0
|
3
|
1
|
2
|
3
|
0
|
2
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Group Corporation | 13661 |
3 |
| Renesas Electronics Corporation | 6046 |
2 |
| Alcatel Lucent | 4551 |
2 |
| Ericsson | 21674 |
1 |
| Huawei Technologies Co., Ltd. | 111764 |
1 |
| Altera Corporation | 2207 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10922 |
1 |
| Morgan Stanley Senior Funding, Inc., AS Agent | 1595 |
1 |
| NEC Sphere Communications, Inc. | 2 |
1 |
| Rambus Canada Inc. | 2 |
1 |
| Teleste Oyj | 67 |
1 |
| Shanghai Zhaoxin Semiconductor Co., Ltd. | 173 |
1 |
| Excem | 19 |
1 |
| Mediatek Inc. | 2014 |
1 |
| T-Mobile Innovations LLC | 3624 |
1 |
| Other owners | 0 |