- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/548 - Phase or frequency modulation
Patent holdings for IPC class H04B 10/548
Total number of patents in this class: 515
10-year publication summary
|
45
|
35
|
45
|
62
|
53
|
53
|
44
|
37
|
21
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 36545 |
41 |
| Infinera Corporation | 639 |
37 |
| Huawei Technologies Co., Ltd. | 119623 |
36 |
| Fujitsu Limited | 17131 |
27 |
| Nippon Telegraph and Telephone Corporation | 16247 |
26 |
| 1FINITY Inc. | 1123 |
11 |
| Ciena Corporation | 2101 |
8 |
| Cable Television Laboratories, Inc. | 1063 |
7 |
| Lightmatter, Inc. | 194 |
7 |
| Signify Holding B.V. | 7849 |
7 |
| Intel Corporation | 46665 |
6 |
| Xieon Networks S.a.r.l. | 163 |
6 |
| PhotonIC Technologies (Shanghai) Co., Ltd | 18 |
6 |
| Cisco Technology, Inc. | 22240 |
5 |
| Raytheon Company | 8469 |
5 |
| ZTE Corporation | 43549 |
5 |
| Phase Sensitive Innovations, Inc. | 86 |
5 |
| OpenLight Photonics, Inc | 200 |
5 |
| Taara Connect, Inc. | 127 |
5 |
| Samsung Electronics Co., Ltd. | 152914 |
4 |
| Other owners | 256 |