- All sections
- H - Electricity
- H04B - Transmission
- H04B 3/487 - Testing crosstalk effects
Patent holdings for IPC class H04B 3/487
Total number of patents in this class: 205
10-year publication summary
|
31
|
36
|
27
|
32
|
29
|
18
|
18
|
9
|
8
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| British Telecommunications Public Limited Company | 2575 |
17 |
| Huawei Technologies Co., Ltd. | 100781 |
15 |
| Intel Corporation | 45621 |
12 |
| Marvell Asia PTE, Ltd. | 6841 |
11 |
| RPX Corporation | 1571 |
9 |
| Futurewei Technologies, Inc. | 3708 |
8 |
| Qualcomm Incorporated | 76576 |
7 |
| Ericsson | 20417 |
7 |
| Cisco Technology, Inc. | 18858 |
6 |
| Alcatel Lucent SA | 1723 |
6 |
| Adaptive Spectrum and Signal Alignment, Inc. | 137 |
5 |
| Cable Television Laboratories, Inc. | 876 |
5 |
| Assia SPE LLC, c/o The Corporation Trust Company | 108 |
5 |
| International Business Machines Corporation | 60644 |
4 |
| Cavium International | 5549 |
4 |
| AT&T Intellectual Property I, L.P. | 9886 |
3 |
| Micron Technology, Inc. | 24960 |
3 |
| Nokia Solutions And Networks Oy | 5698 |
3 |
| Adtran, Inc. | 443 |
3 |
| Ikanos Communications, Inc. | 92 |
3 |
| Other owners | 69 |