- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/572 - Wavelength control
Patent holdings for IPC class H04B 10/572
Total number of patents in this class: 530
10-year publication summary
|
49
|
52
|
68
|
70
|
70
|
47
|
43
|
72
|
30
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 100781 |
53 |
| Fujitsu Limited | 19265 |
37 |
| NEC Corporation | 32703 |
36 |
| Nippon Telegraph and Telephone Corporation | 14195 |
21 |
| Mitsubishi Electric Corporation | 43934 |
14 |
| Ciena Corporation | 1927 |
14 |
| Futurewei Technologies, Inc. | 3708 |
13 |
| NEC Asia Pacific Pte. Ltd. | 109 |
10 |
| ZTE Corporation | 39218 |
9 |
| Kyocera Sld Laser, Inc. | 281 |
9 |
| Applied Optoelectronics, Inc. | 221 |
8 |
| Infinera Corporation | 620 |
8 |
| Solid, Inc. | 302 |
8 |
| ARRIS Enterprises LLC | 3432 |
6 |
| Google LLC | 38759 |
6 |
| Snell Holdings, LLC | 14 |
6 |
| Lumentum Technology UK Limited | 72 |
6 |
| Ericsson | 20417 |
5 |
| Raytheon Company | 8535 |
5 |
| Hewlett Packard Enterprise Development LP | 10702 |
5 |
| Other owners | 251 |