- All sections
- H - Electricity
- H04B - Transmission
- H04B 3/04 - Control of transmissionEqualising
Patent holdings for IPC class H04B 3/04
Total number of patents in this class: 374
10-year publication summary
|
31
|
35
|
35
|
37
|
26
|
28
|
23
|
14
|
13
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 121192 |
25 |
| Mitsubishi Electric Corporation | 47722 |
17 |
| AT&T Intellectual Property I, L.P. | 9905 |
12 |
| NEC Corporation | 36631 |
12 |
| Kandou Labs, S.A. | 335 |
11 |
| ARRIS Enterprises LLC | 3421 |
10 |
| Fujitsu Limited | 16991 |
9 |
| Qualcomm Incorporated | 90870 |
8 |
| Nippon Telegraph and Telephone Corporation | 15935 |
8 |
| Panasonic Corporation | 19386 |
7 |
| Denso Corporation | 25361 |
7 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 47734 |
7 |
| Sony Semiconductor Solutions Corporation | 11342 |
7 |
| Marvell Asia PTE, Ltd. | 6340 |
7 |
| Sony Corporation | 30327 |
5 |
| Sumitomo Electric Industries, Ltd. | 16191 |
5 |
| Cable Television Laboratories, Inc. | 1081 |
5 |
| MaxLinear, Inc. | 861 |
5 |
| Avago Technologies International Sales Pte. Limited | 8586 |
5 |
| Samsung Electronics Co., Ltd. | 155224 |
4 |
| Other owners | 198 |