- 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: 3447
10-year publication summary
|
399
|
315
|
306
|
309
|
285
|
217
|
164
|
149
|
123
|
25
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AT&T Intellectual Property I, L.P. | 9390 |
292 |
| Texas Instruments Incorporated | 19457 |
170 |
| Huawei Technologies Co., Ltd. | 108191 |
92 |
| Qualcomm Incorporated | 82885 |
63 |
| Panasonic Corporation | 20280 |
63 |
| Sony Corporation | 31442 |
61 |
| Landis+Gyr Technologies, LLC | 113 |
52 |
| The Boeing Company | 19998 |
43 |
| Panasonic Intellectual Property Management Co., Ltd. | 30164 |
43 |
| Cisco Technology, Inc. | 19506 |
38 |
| Sumitomo Electric Industries, Ltd. | 15111 |
37 |
| Siemens AG | 24596 |
32 |
| May Patents Ltd. | 145 |
31 |
| Sagemcom Energy & Telecom SAS | 244 |
31 |
| Illinois Tool Works Inc. | 11433 |
27 |
| Robert Bosch GmbH | 42004 |
25 |
| Samsung Electronics Co., Ltd. | 140839 |
23 |
| Mitsubishi Electric Corporation | 45167 |
22 |
| Sumitomo Wiring Systems, Ltd. | 10078 |
22 |
| AutoNetworks Technologies, Ltd. | 6384 |
22 |
| Other owners | 2258 |