- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/34 - Testing for cross-talk
Patent holdings for IPC class H04M 3/34
Total number of patents in this class: 102
10-year publication summary
|
20
|
14
|
13
|
8
|
6
|
3
|
2
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alcatel Lucent | 4720 |
10 |
| Huawei Technologies Co., Ltd. | 100781 |
9 |
| Futurewei Technologies, Inc. | 3708 |
9 |
| Adtran, Inc. | 443 |
9 |
| RPX Corporation | 1571 |
7 |
| AT&T Intellectual Property I, L.P. | 9886 |
5 |
| Ericsson | 20417 |
5 |
| MaxLinear Asia Singapore Private Limited | 106 |
4 |
| MaxLinear, Inc. | 708 |
4 |
| British Telecommunications Public Limited Company | 2575 |
3 |
| Alcatel Lucent SA | 1723 |
3 |
| Ikanos Communications, Inc. | 92 |
3 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
3 |
| Alcatel-Lucent USA Inc. | 604 |
2 |
| SK Hynix Inc. | 11030 |
2 |
| Adaptive Spectrum and Signal Alignment, Inc. | 137 |
2 |
| Dolby Laboratories Licensing Corporation | 3883 |
2 |
| Assia SPE LLC, c/o The Corporation Trust Company | 108 |
2 |
| Marvell Asia PTE, Ltd. | 6841 |
2 |
| Cavium International | 5549 |
2 |
| Other owners | 14 |