- All sections
- H - Electricity
- H04J - Multiplex communication
- H04J 14/02 - Wavelength-division multiplex systems
Patent holdings for IPC class H04J 14/02
Total number of patents in this class: 6381
10-year publication summary
|
619
|
593
|
622
|
583
|
558
|
557
|
420
|
409
|
374
|
103
|
| 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 |
633 |
| NEC Corporation | 32703 |
380 |
| Fujitsu Limited | 19265 |
327 |
| Ciena Corporation | 1927 |
224 |
| Nippon Telegraph and Telephone Corporation | 14195 |
205 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
196 |
| Infinera Corporation | 620 |
187 |
| ZTE Corporation | 39218 |
162 |
| Ericsson | 20417 |
130 |
| Futurewei Technologies, Inc. | 3708 |
124 |
| Cisco Technology, Inc. | 18858 |
120 |
| Mitsubishi Electric Corporation | 43934 |
95 |
| II-VI Delaware, Inc. | 1720 |
87 |
| Alcatel Lucent | 4720 |
82 |
| AT&T Intellectual Property I, L.P. | 9886 |
69 |
| Hewlett Packard Enterprise Development LP | 10702 |
69 |
| CommScope Technologies LLC | 4937 |
68 |
| Marvell Asia PTE, Ltd. | 6841 |
67 |
| Juniper Networks, Inc. | 3556 |
65 |
| ARRIS Enterprises LLC | 3432 |
61 |
| Other owners | 3030 |