- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/2569 - Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to polarisation mode dispersion [PMD]
Patent holdings for IPC class H04B 10/2569
Total number of patents in this class: 135
10-year publication summary
|
8
|
14
|
9
|
11
|
9
|
7
|
10
|
10
|
7
|
2
|
| 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 |
18 |
| Fujitsu Limited | 19265 |
8 |
| Ciena Corporation | 1927 |
8 |
| NEC Corporation | 32703 |
4 |
| Lumentum Operations LLC | 696 |
4 |
| Xieon Networks S.a.r.l. | 172 |
4 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
4 |
| AT&T Intellectual Property I, L.P. | 9886 |
3 |
| Ericsson | 20417 |
3 |
| Nippon Telegraph and Telephone Corporation | 14195 |
3 |
| Boe Technology Group Co., Ltd. | 35384 |
3 |
| Chongqing BOE Optoelectronics Technology Co., Ltd. | 576 |
3 |
| National Research Council of Canada | 1545 |
3 |
| Nokia Siemens Networks GmbH & Co. KG | 614 |
3 |
| Viavi Solutions Inc. | 1363 |
3 |
| Marvell Asia PTE, Ltd. | 6841 |
3 |
| Cavium International | 5549 |
3 |
| Alcatel Lucent | 4720 |
3 |
| NTT Innovative Devices Corporation | 36 |
3 |
| ZTE Corporation | 39218 |
2 |
| Other owners | 47 |