- 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: 234
10-year publication summary
|
9
|
14
|
24
|
30
|
16
|
13
|
27
|
28
|
19
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 36129 |
45 |
| Huawei Technologies Co., Ltd. | 114462 |
22 |
| Nippon Telegraph and Telephone Corporation | 16793 |
12 |
| Fujitsu Limited | 17692 |
11 |
| ZTE Corporation | 42809 |
11 |
| Ciena Corporation | 2044 |
8 |
| Accelink Technologies Co., Ltd. | 305 |
7 |
| Alcatel Lucent | 4505 |
7 |
| Mitsubishi Electric Corporation | 46618 |
6 |
| Subcom, LLC | 152 |
6 |
| Cox Communications, Inc. | 464 |
4 |
| Molex, LLC | 1952 |
4 |
| Marvell Asia PTE, Ltd. | 6439 |
4 |
| Cavium International | 4954 |
4 |
| 1FINITY Inc. | 750 |
4 |
| Cisco Technology, Inc. | 22061 |
3 |
| Telefonaktiebolaget LM Ericsson (publ) | 28377 |
3 |
| The Furukawa Electric Co., Ltd. | 3701 |
2 |
| Google LLC | 42752 |
2 |
| Infinera Corporation | 639 |
2 |
| Other owners | 67 |