- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/32 - Automatic routine testing for lines between exchanges
Patent holdings for IPC class H04M 3/32
Total number of patents in this class: 48
10-year publication summary
|
3
|
7
|
5
|
6
|
2
|
6
|
3
|
3
|
3
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cyara Solutions Pty Ltd | 58 |
12 |
| Huawei Technologies Co., Ltd. | 100781 |
4 |
| Level 3 Communications, LLC | 1428 |
4 |
| AT&T Intellectual Property I, L.P. | 9886 |
3 |
| Metaswitch Networks Ltd | 241 |
3 |
| British Telecommunications Public Limited Company | 2575 |
2 |
| Everbridge, Inc. | 62 |
2 |
| Meucci Solutions NV | 4 |
2 |
| Mitsubishi Electric Corporation | 43934 |
1 |
| Dell Products L.P. | 11144 |
1 |
| CDW LLC | 144 |
1 |
| Cottonwood Creek Technologies, Inc. | 3 |
1 |
| ECI Telecom Ltd. | 162 |
1 |
| Globetouch, Inc. | 8 |
1 |
| Google LLC | 38759 |
1 |
| NetScout Systems Texas, LLC | 109 |
1 |
| Peerless Network, Inc. | 18 |
1 |
| T-Mobile USA, Inc. | 3668 |
1 |
| Viber Media SARL | 16 |
1 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
1 |
| Other owners | 4 |