- 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: 3450
10-year publication summary
|
342
|
399
|
315
|
306
|
309
|
284
|
216
|
162
|
147
|
41
|
| 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 |
315 |
| Texas Instruments Incorporated | 19376 |
167 |
| Huawei Technologies Co., Ltd. | 100781 |
86 |
| Sony Corporation | 32931 |
66 |
| Qualcomm Incorporated | 76576 |
64 |
| Panasonic Corporation | 20786 |
63 |
| Landis+Gyr Technologies, LLC | 114 |
52 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
44 |
| The Boeing Company | 19843 |
43 |
| Sumitomo Electric Industries, Ltd. | 14131 |
38 |
| Cisco Technology, Inc. | 18858 |
35 |
| Siemens AG | 24990 |
32 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
32 |
| Illinois Tool Works Inc. | 11152 |
31 |
| May Patents Ltd. | 124 |
30 |
| Sagemcom Energy & Telecom SAS | 225 |
30 |
| Robert Bosch GmbH | 40953 |
23 |
| Samsung Electronics Co., Ltd. | 131630 |
22 |
| Mitsubishi Electric Corporation | 43934 |
22 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
22 |
| Other owners | 2233 |