- All sections
- H - Electricity
- H04B - Transmission
- H04B 3/50 - Systems for transmission between fixed stations via two-conductor transmission lines
Patent holdings for IPC class H04B 3/50
Total number of patents in this class: 210
10-year publication summary
13
|
25
|
26
|
25
|
23
|
19
|
21
|
8
|
8
|
4
|
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 |
17 |
Sumitomo Electric Industries, Ltd. | 14131 |
8 |
Sumitomo Wiring Systems, Ltd. | 9367 |
7 |
AutoNetworks Technologies, Ltd. | 5809 |
7 |
British Telecommunications Public Limited Company | 2575 |
5 |
Ericsson | 20417 |
5 |
CertusView Technologies, LLC | 190 |
5 |
KT Corporation | 1885 |
5 |
Sony Corporation | 32931 |
4 |
Panasonic Corporation | 20786 |
4 |
Hubbell Incorporated | 3052 |
4 |
Axonne Inc. | 9 |
4 |
Apple Inc. | 50209 |
3 |
Qualcomm Incorporated | 76576 |
3 |
Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
3 |
Mitsubishi Electric Corporation | 43934 |
3 |
Huawei Technologies Co., Ltd. | 100781 |
3 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
3 |
Yamaha Corporation | 4054 |
3 |
Hubbell Incorporated (Delaware) | 84 |
3 |
Other owners | 111 |