- 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: 250
10-year publication summary
|
14
|
25
|
31
|
16
|
14
|
28
|
30
|
21
|
23
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 36702 |
46 |
| Huawei Technologies Co., Ltd. | 120661 |
23 |
| ZTE Corporation | 43659 |
11 |
| Fujitsu Limited | 17007 |
9 |
| Nippon Telegraph and Telephone Corporation | 15961 |
9 |
| Ciena Corporation | 2155 |
8 |
| Accelink Technologies Co., Ltd. | 327 |
8 |
| 1FINITY Inc. | 1327 |
8 |
| Alcatel Lucent | 4373 |
7 |
| Ntt, Inc. | 3614 |
7 |
| Mitsubishi Electric Corporation | 47655 |
6 |
| Subcom, LLC | 153 |
6 |
| Cox Communications, Inc. | 476 |
4 |
| Molex, LLC | 2020 |
4 |
| Marvell Asia PTE, Ltd. | 6342 |
4 |
| Cavium International | 4753 |
4 |
| Cisco Technology, Inc. | 22347 |
3 |
| Wilus Institute of Standards and Technology Inc. | 848 |
3 |
| Telefonaktiebolaget LM Ericsson (publ) | 28655 |
3 |
| Qualcomm Incorporated | 90545 |
2 |
| Other owners | 75 |