- All sections
- H - Electricity
- H04B - Transmission
- H04B 3/00 - Line transmission systems
Patent holdings for IPC class H04B 3/00
Total number of patents in this class: 1021
10-year publication summary
|
105
|
90
|
66
|
75
|
51
|
36
|
33
|
15
|
11
|
4
|
| 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. | 9661 |
42 |
| Samsung Electronics Co., Ltd. | 148924 |
28 |
| Sonos, Inc. | 2701 |
24 |
| Sony Corporation | 30805 |
22 |
| Texas Instruments Incorporated | 19493 |
22 |
| Avago Technologies International Sales Pte. Limited | 8670 |
21 |
| Qualcomm Incorporated | 87475 |
19 |
| Apple Inc. | 56211 |
15 |
| Huawei Technologies Co., Ltd. | 115556 |
13 |
| Yamaha Corporation | 4061 |
12 |
| Cisco Technology, Inc. | 22109 |
11 |
| Denso Corporation | 24755 |
11 |
| Bose Corporation | 3024 |
10 |
| Cirrus Logic, Inc. | 1795 |
9 |
| Sound United, LLC | 88 |
9 |
| British Telecommunications Public Limited Company | 2650 |
8 |
| Panasonic Corporation | 19969 |
8 |
| Intel Corporation | 46445 |
8 |
| Renesas Electronics Corporation | 5937 |
8 |
| International Business Machines Corporation | 61734 |
7 |
| Other owners | 714 |