- 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: 206
10-year publication summary
|
7
|
10
|
14
|
25
|
31
|
16
|
13
|
25
|
27
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 32703 |
41 |
| Huawei Technologies Co., Ltd. | 100781 |
17 |
| Fujitsu Limited | 19265 |
16 |
| ZTE Corporation | 39218 |
8 |
| Nippon Telegraph and Telephone Corporation | 14195 |
8 |
| Ciena Corporation | 1927 |
7 |
| Accelink Technologies Co., Ltd. | 264 |
7 |
| Alcatel Lucent | 4720 |
7 |
| Mitsubishi Electric Corporation | 43934 |
6 |
| Subcom, LLC | 131 |
5 |
| Cox Communications, Inc. | 471 |
4 |
| Molex, LLC | 1792 |
4 |
| Marvell Asia PTE, Ltd. | 6841 |
4 |
| Cavium International | 5549 |
4 |
| Bookham Technology plc | 48 |
3 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
3 |
| The Furukawa Electric Co., Ltd. | 3486 |
2 |
| Corning Optical Communications LLC | 1741 |
2 |
| Google LLC | 38759 |
2 |
| Kohoku Kogyo Co.,Ltd. | 50 |
2 |
| Other owners | 54 |