- All sections
- H - Electricity
- H04B - Transmission
- H04B 3/54 - Systems for transmission via power distribution lines
Patent holdings for IPC class H04B 3/54
Total number of patents in this class: 3456
10-year publication summary
|
303
|
294
|
296
|
273
|
206
|
156
|
155
|
124
|
105
|
12
|
| 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. | 9783 |
285 |
| Texas Instruments Incorporated | 19547 |
171 |
| Huawei Technologies Co., Ltd. | 118321 |
109 |
| Qualcomm Incorporated | 88980 |
65 |
| Panasonic Corporation | 19867 |
61 |
| Sony Corporation | 30578 |
58 |
| Landis+Gyr Technologies, LLC | 112 |
52 |
| Panasonic Intellectual Property Management Co., Ltd. | 33033 |
45 |
| The Boeing Company | 20111 |
43 |
| Cisco Technology, Inc. | 22223 |
40 |
| Sumitomo Electric Industries, Ltd. | 15978 |
37 |
| May Patents Ltd. | 154 |
35 |
| Siemens AG | 24291 |
31 |
| Sagemcom Energy & Telecom SAS | 268 |
31 |
| Illinois Tool Works Inc. | 11662 |
25 |
| Robert Bosch GmbH | 43321 |
25 |
| Samsung Electronics Co., Ltd. | 151726 |
24 |
| Sumitomo Wiring Systems, Ltd. | 10708 |
22 |
| AutoNetworks Technologies, Ltd. | 6874 |
22 |
| Enphase Energy, Inc. | 620 |
22 |
| Other owners | 2253 |