- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/297 - Bidirectional amplification
Patent holdings for IPC class H04B 10/297
Total number of patents in this class: 57
10-year publication summary
|
3
|
1
|
2
|
9
|
3
|
10
|
8
|
4
|
4
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 32703 |
7 |
| Fujitsu Limited | 19265 |
5 |
| Novec Solutions, Inc. | 8 |
5 |
| Alcatel Submarine Networks | 23 |
4 |
| ARRIS Enterprises LLC | 3432 |
3 |
| Alcatel Lucent | 4720 |
3 |
| Subcom, LLC | 131 |
3 |
| Ericsson | 20417 |
2 |
| Huawei Technologies Co., Ltd. | 100781 |
2 |
| Nippon Telegraph and Telephone Corporation | 14195 |
2 |
| II-VI Delaware, Inc. | 1720 |
2 |
| Neptune Subsea IP Limited | 50 |
2 |
| France Telecom | 1618 |
2 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
2 |
| British Telecommunications Public Limited Company | 2575 |
1 |
| Mitsubishi Electric Corporation | 43934 |
1 |
| Alcatel Lucent SA | 1723 |
1 |
| ZTE Corporation | 39218 |
1 |
| Accelink Technologies Co., Ltd. | 264 |
1 |
| Cox Communications, Inc. | 471 |
1 |
| Other owners | 7 |