- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/294 - Signal power control in a multiwavelength system, e.g. gain equalisation
Patent holdings for IPC class H04B 10/294
Total number of patents in this class: 238
10-year publication summary
|
14
|
24
|
30
|
16
|
13
|
27
|
29
|
19
|
23
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 36334 |
45 |
| Huawei Technologies Co., Ltd. | 116616 |
23 |
| ZTE Corporation | 43178 |
11 |
| Fujitsu Limited | 17637 |
10 |
| Nippon Telegraph and Telephone Corporation | 16251 |
9 |
| Ciena Corporation | 2068 |
8 |
| Accelink Technologies Co., Ltd. | 317 |
7 |
| Alcatel Lucent | 4458 |
7 |
| Mitsubishi Electric Corporation | 47131 |
6 |
| Subcom, LLC | 152 |
6 |
| 1FINITY Inc. | 793 |
5 |
| Cox Communications, Inc. | 469 |
4 |
| Molex, LLC | 1988 |
4 |
| Marvell Asia PTE, Ltd. | 6420 |
4 |
| Cavium International | 4890 |
4 |
| Ntt, Inc. | 2327 |
4 |
| Cisco Technology, Inc. | 22109 |
3 |
| Telefonaktiebolaget LM Ericsson (publ) | 28475 |
3 |
| The Furukawa Electric Co., Ltd. | 3696 |
2 |
| Google LLC | 43237 |
2 |
| Other owners | 71 |