- 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: 228
10-year publication summary
|
10
|
14
|
25
|
31
|
16
|
14
|
26
|
28
|
19
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 35652 |
44 |
| Huawei Technologies Co., Ltd. | 112438 |
20 |
| Fujitsu Limited | 18351 |
16 |
| Nippon Telegraph and Telephone Corporation | 17341 |
12 |
| ZTE Corporation | 42423 |
11 |
| Ciena Corporation | 2030 |
8 |
| Accelink Technologies Co., Ltd. | 300 |
7 |
| Alcatel Lucent | 4541 |
7 |
| Mitsubishi Electric Corporation | 46093 |
6 |
| Subcom, LLC | 151 |
6 |
| Cox Communications, Inc. | 479 |
4 |
| Molex, LLC | 1940 |
4 |
| Marvell Asia PTE, Ltd. | 6545 |
4 |
| Cavium International | 5038 |
4 |
| Telefonaktiebolaget LM Ericsson (publ) | 27928 |
3 |
| Cisco Technology, Inc. | 19918 |
2 |
| The Furukawa Electric Co., Ltd. | 3650 |
2 |
| Google LLC | 42196 |
2 |
| Infinera Corporation | 636 |
2 |
| Kohoku Kogyo Co.,Ltd. | 53 |
2 |
| Other owners | 62 |