- 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: 373
10-year publication summary
|
22
|
31
|
35
|
35
|
37
|
26
|
28
|
23
|
13
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 111449 |
24 |
| Mitsubishi Electric Corporation | 45899 |
17 |
| NEC Corporation | 35471 |
13 |
| Kandou Labs, S.A. | 326 |
11 |
| Fujitsu Limited | 18354 |
10 |
| Marvell Asia PTE, Ltd. | 6558 |
10 |
| ARRIS Enterprises LLC | 3432 |
9 |
| Qualcomm Incorporated | 84760 |
8 |
| Nippon Telegraph and Telephone Corporation | 17228 |
8 |
| AT&T Intellectual Property I, L.P. | 9486 |
7 |
| Panasonic Corporation | 20149 |
7 |
| Denso Corporation | 24190 |
7 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42288 |
7 |
| Sony Semiconductor Solutions Corporation | 10355 |
7 |
| Cavium International | 5072 |
7 |
| Samsung Electronics Co., Ltd. | 144675 |
5 |
| Sony Corporation | 31124 |
5 |
| Sumitomo Electric Industries, Ltd. | 15391 |
5 |
| Cable Television Laboratories, Inc. | 990 |
5 |
| Avago Technologies International Sales Pte. Limited | 8805 |
5 |
| Other owners | 196 |