- All sections
- H - Electricity
- H04B - Transmission
- H04B 3/04 - Control of transmission; Equalising
Patent holdings for IPC class H04B 3/04
Total number of patents in this class: 385
10-year publication summary
|
23
|
22
|
31
|
35
|
35
|
37
|
26
|
27
|
20
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 100781 |
22 |
| Mitsubishi Electric Corporation | 43934 |
18 |
| NEC Corporation | 32703 |
14 |
| Kandou Labs, S.A. | 312 |
11 |
| Marvell Asia PTE, Ltd. | 6841 |
10 |
| AT&T Intellectual Property I, L.P. | 9886 |
9 |
| Fujitsu Limited | 19265 |
9 |
| Qualcomm Incorporated | 76576 |
8 |
| Nippon Telegraph and Telephone Corporation | 14195 |
8 |
| Panasonic Corporation | 20786 |
7 |
| Denso Corporation | 23338 |
7 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
7 |
| ARRIS Enterprises LLC | 3432 |
7 |
| Sony Semiconductor Solutions Corporation | 8770 |
7 |
| Cavium International | 5549 |
7 |
| Sony Corporation | 32931 |
5 |
| Sumitomo Electric Industries, Ltd. | 14131 |
5 |
| Advantest Corporation | 1939 |
5 |
| Cable Television Laboratories, Inc. | 876 |
5 |
| Avago Technologies International Sales Pte. Limited | 9260 |
5 |
| Other owners | 209 |