- All sections
- H - Electricity
- H04B - Transmission
- H04B 3/56 - Circuits for coupling, blocking, or by-passing of signals
Patent holdings for IPC class H04B 3/56
Total number of patents in this class: 642
10-year publication summary
|
78
|
87
|
88
|
67
|
42
|
30
|
19
|
18
|
12
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AT&T Intellectual Property I, L.P. | 9993 |
178 |
| Crius Technology Group, Inc. | 22 |
14 |
| The Boeing Company | 20160 |
12 |
| Sumitomo Electric Industries, Ltd. | 16305 |
12 |
| Sony Corporation | 30208 |
11 |
| Texas Instruments Incorporated | 19663 |
11 |
| Sumitomo Wiring Systems, Ltd. | 10987 |
11 |
| Snap Inc. | 6736 |
11 |
| AutoNetworks Technologies, Ltd. | 7089 |
11 |
| Qualcomm Incorporated | 91997 |
10 |
| Huawei Technologies Co., Ltd. | 123282 |
9 |
| Rambus Inc. | 2245 |
8 |
| SolarEdge Technologies Ltd. | 630 |
8 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
7 |
| Samsung Electronics Co., Ltd. | 157557 |
6 |
| Denso Corporation | 25513 |
6 |
| Analog Devices International Unlimited Company | 2022 |
6 |
| STMicroelectronics S.r.l. | 3378 |
5 |
| Bayerische Motoren Werke Aktiengesellschaft | 15252 |
5 |
| Landis+Gyr Technologies, LLC | 112 |
5 |
| Other owners | 296 |