- 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: 371
10-year publication summary
|
22
|
31
|
35
|
35
|
35
|
26
|
28
|
22
|
13
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 113853 |
25 |
| Mitsubishi Electric Corporation | 46449 |
17 |
| NEC Corporation | 36003 |
13 |
| Kandou Labs, S.A. | 329 |
11 |
| Fujitsu Limited | 18388 |
10 |
| Marvell Asia PTE, Ltd. | 6517 |
10 |
| ARRIS Enterprises LLC | 3475 |
9 |
| Qualcomm Incorporated | 86553 |
8 |
| Nippon Telegraph and Telephone Corporation | 17381 |
8 |
| AT&T Intellectual Property I, L.P. | 9588 |
7 |
| Panasonic Corporation | 20042 |
7 |
| Denso Corporation | 24480 |
7 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 43400 |
7 |
| Sony Semiconductor Solutions Corporation | 10631 |
7 |
| Cavium International | 4980 |
7 |
| Sony Corporation | 30929 |
5 |
| Sumitomo Electric Industries, Ltd. | 15609 |
5 |
| Cable Television Laboratories, Inc. | 1010 |
5 |
| Avago Technologies International Sales Pte. Limited | 8701 |
5 |
| Samsung Electronics Co., Ltd. | 147622 |
4 |
| Other owners | 194 |