- All sections
- H - Electricity
- H04B - Transmission
- H04B 1/56 - Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions
Patent holdings for IPC class H04B 1/56
Total number of patents in this class: 263
10-year publication summary
|
23
|
32
|
34
|
15
|
12
|
6
|
9
|
5
|
3
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 59241 |
32 |
| Huawei Technologies Co., Ltd. | 124837 |
19 |
| Intel Corporation | 46292 |
18 |
| Qualcomm Incorporated | 93376 |
14 |
| Murata Manufacturing Co., Ltd. | 25917 |
11 |
| LG Electronics Inc. | 76087 |
10 |
| The Board of Trustees of the Leland Stanford Junior University | 6711 |
6 |
| Nokia Technologies Oy | 21721 |
6 |
| Photonic Systems, Inc. | 44 |
6 |
| Samsung Electronics Co., Ltd. | 159029 |
5 |
| Ericsson | 23055 |
5 |
| Motorola Solutions, Inc. | 4573 |
5 |
| Skyworks Solutions, Inc. | 3986 |
5 |
| Canon Inc. | 44285 |
3 |
| Texas Instruments Incorporated | 19644 |
3 |
| Massachusetts Institute of Technology | 10305 |
3 |
| Qorvo US, Inc. | 2426 |
3 |
| Marvell Asia PTE, Ltd. | 6251 |
3 |
| Avago Technologies International Sales Pte. Limited | 8539 |
3 |
| Telefonaktiebolaget LM Ericsson (publ) | 28915 |
3 |
| Other owners | 100 |