- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/556 - Digital modulation, e.g. differential phase shift keying [DPSK] or frequency shift keying [FSK]
Patent holdings for IPC class H04B 10/556
Total number of patents in this class: 559
10-year publication summary
|
47
|
52
|
57
|
44
|
42
|
34
|
30
|
23
|
17
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 120661 |
44 |
| NEC Corporation | 36702 |
36 |
| Marvell Asia PTE, Ltd. | 6342 |
21 |
| Mitsubishi Electric Corporation | 47655 |
20 |
| Cavium International | 4753 |
19 |
| Nippon Telegraph and Telephone Corporation | 15961 |
17 |
| Raytheon Company | 8465 |
15 |
| Fujitsu Limited | 17007 |
13 |
| Ramot at Tel-Aviv University Ltd. | 1529 |
13 |
| Ciena Corporation | 2155 |
11 |
| Kookmin University Industry Academy Cooperation Foundation | 423 |
11 |
| ZTE Corporation | 43659 |
10 |
| Futurewei Technologies, Inc. | 3775 |
10 |
| Acacia Technology, Inc. | 201 |
10 |
| Nokia Solutions And Networks Oy | 7088 |
9 |
| Infinera Corporation | 638 |
9 |
| Attochron, LLC | 71 |
8 |
| Alcatel Lucent | 4373 |
8 |
| Juniper Networks, Inc. | 3779 |
7 |
| Google LLC | 43952 |
7 |
| Other owners | 261 |