- 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: 53
10-year publication summary
|
5
|
6
|
2
|
6
|
4
|
3
|
4
|
2
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cyara Solutions Pty Ltd | 71 |
12 |
| Level 3 Communications, LLC | 1250 |
6 |
| AT&T Intellectual Property I, L.P. | 9995 |
3 |
| Huawei Technologies Co., Ltd. | 123385 |
3 |
| British Telecommunications Public Limited Company | 2601 |
2 |
| CDW LLC | 234 |
2 |
| Everbridge, Inc. | 53 |
2 |
| Google LLC | 44482 |
2 |
| Metaswitch Networks Ltd | 235 |
2 |
| Avoxi, Inc. | 10 |
2 |
| Meucci Solutions NV | 4 |
2 |
| Samsung Electronics Co., Ltd. | 157719 |
1 |
| Mitsubishi Electric Corporation | 48018 |
1 |
| Dell Products L.P. | 17017 |
1 |
| Nippon Telegraph and Telephone Corporation | 15924 |
1 |
| Cottonwood Creek Technologies, Inc. | 2 |
1 |
| ECI Telecom Ltd. | 139 |
1 |
| Globetouch, Inc. | 7 |
1 |
| NetScout Systems Texas, LLC | 104 |
1 |
| Peerless Network, Inc. | 18 |
1 |
| Other owners | 6 |