- 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: 691
10-year publication summary
|
51
|
111
|
78
|
87
|
88
|
67
|
42
|
29
|
17
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AT&T Intellectual Property I, L.P. | 9886 |
207 |
| The Boeing Company | 19843 |
13 |
| Sumitomo Electric Industries, Ltd. | 14131 |
13 |
| Sony Corporation | 32931 |
12 |
| Crius Technology Group, Inc. | 19 |
12 |
| Qualcomm Incorporated | 76576 |
11 |
| Texas Instruments Incorporated | 19376 |
11 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
11 |
| AutoNetworks Technologies, Ltd. | 5809 |
11 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 1082 |
10 |
| Mitsubishi Electric Corporation | 43934 |
8 |
| Huawei Technologies Co., Ltd. | 100781 |
8 |
| Rambus Inc. | 2314 |
8 |
| Snap Inc. | 4604 |
8 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
7 |
| Denso Corporation | 23338 |
6 |
| STMicroelectronics S.r.l. | 3693 |
6 |
| SolarEdge Technologies Ltd. | 493 |
6 |
| Analog Devices International Unlimited Company | 1724 |
6 |
| Bayerische Motoren Werke Aktiengesellschaft | 13126 |
5 |
| Other owners | 312 |