- 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: 269
10-year publication summary
|
22
|
30
|
23
|
32
|
34
|
15
|
11
|
5
|
9
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 50209 |
32 |
| Intel Corporation | 45621 |
19 |
| Huawei Technologies Co., Ltd. | 100781 |
18 |
| Qualcomm Incorporated | 76576 |
13 |
| LG Electronics Inc. | 69257 |
9 |
| Murata Manufacturing Co., Ltd. | 22355 |
9 |
| The Board of Trustees of the Leland Stanford Junior University | 6054 |
6 |
| Photonic Systems, Inc. | 52 |
6 |
| Samsung Electronics Co., Ltd. | 131630 |
5 |
| Ericsson | 20417 |
5 |
| Nokia Technologies Oy | 15057 |
5 |
| Skyworks Solutions, Inc. | 3450 |
4 |
| Canon Inc. | 36841 |
3 |
| Texas Instruments Incorporated | 19376 |
3 |
| Massachusetts Institute of Technology | 9795 |
3 |
| National Semiconductor Corporation | 1411 |
3 |
| Motorola Solutions, Inc. | 4355 |
3 |
| Qorvo US, Inc. | 2018 |
3 |
| Marvell Asia PTE, Ltd. | 6841 |
3 |
| Avago Technologies International Sales Pte. Limited | 9260 |
3 |
| Other owners | 114 |