- 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: 511
10-year publication summary
|
45
|
35
|
45
|
62
|
53
|
53
|
44
|
37
|
21
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 36411 |
41 |
| Huawei Technologies Co., Ltd. | 117433 |
36 |
| Infinera Corporation | 638 |
36 |
| Fujitsu Limited | 17377 |
27 |
| Nippon Telegraph and Telephone Corporation | 16263 |
26 |
| 1FINITY Inc. | 1076 |
11 |
| Ciena Corporation | 2080 |
8 |
| Cable Television Laboratories, Inc. | 1051 |
7 |
| Lightmatter, Inc. | 190 |
7 |
| Signify Holding B.V. | 7761 |
7 |
| Intel Corporation | 46569 |
6 |
| Xieon Networks S.a.r.l. | 163 |
6 |
| PhotonIC Technologies (Shanghai) Co., Ltd | 18 |
6 |
| Cisco Technology, Inc. | 22130 |
5 |
| Raytheon Company | 8462 |
5 |
| ZTE Corporation | 43295 |
5 |
| Phase Sensitive Innovations, Inc. | 85 |
5 |
| OpenLight Photonics, Inc | 192 |
5 |
| Taara Connect, Inc. | 119 |
5 |
| Samsung Electronics Co., Ltd. | 150751 |
4 |
| Other owners | 253 |