- 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: 137
10-year publication summary
|
9
|
11
|
9
|
7
|
10
|
10
|
7
|
4
|
2
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 123282 |
19 |
| Ciena Corporation | 2173 |
10 |
| Fujitsu Limited | 16862 |
5 |
| Wells Fargo Bank, National Association, AS Collateral Agent | 878 |
4 |
| Xieon Networks S.a.r.l. | 161 |
4 |
| Telefonaktiebolaget LM Ericsson (publ) | 28744 |
4 |
| AT&T Intellectual Property I, L.P. | 9993 |
3 |
| NEC Corporation | 36934 |
3 |
| Ericsson | 22660 |
3 |
| Nippon Telegraph and Telephone Corporation | 15922 |
3 |
| Boe Technology Group Co., Ltd. | 44004 |
3 |
| Chongqing BOE Optoelectronics Technology Co., Ltd. | 674 |
3 |
| National Research Council of Canada | 1551 |
3 |
| Viavi Solutions Inc. | 1533 |
3 |
| Marvell Asia PTE, Ltd. | 6313 |
3 |
| Cavium International | 4672 |
3 |
| Alcatel Lucent | 4333 |
3 |
| NTT Innovative Devices Corporation | 84 |
3 |
| LG Electronics Inc. | 75654 |
2 |
| Mitsubishi Electric Corporation | 47971 |
2 |
| Other owners | 51 |