- All sections
- H - Electricity
- H04Q - Selecting
- H04Q 3/62 - Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
Patent holdings for IPC class H04Q 3/62
Total number of patents in this class: 77
10-year publication summary
|
9
|
7
|
7
|
3
|
5
|
4
|
4
|
1
|
0
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tango Networks, Inc. | 137 |
30 |
| NEC Platforms, Ltd. | 1146 |
12 |
| Peerless Network, Inc. | 18 |
6 |
| 8x8, Inc. | 435 |
4 |
| Nippon Telegraph and Telephone West Corporation | 25 |
3 |
| Nippon Telegraph And Telephone East Corporation | 25 |
3 |
| Huawei Technologies Co., Ltd. | 110249 |
2 |
| Damaka, Inc. | 96 |
2 |
| AT&T Intellectual Property I, L.P. | 9437 |
1 |
| Verizon Data Services Inc. | 7 |
1 |
| Verizon Patent And Licensing Inc. | 7041 |
1 |
| ZTE Corporation | 41858 |
1 |
| Microsoft Technology Licensing, LLC | 53473 |
1 |
| Nippon Telegraph and Telephone Corporation | 17040 |
1 |
| Aiphone Co., Ltd. | 68 |
1 |
| BCE Inc. | 373 |
1 |
| Norwood Systems Pty Ltd | 12 |
1 |
| PMT | 2 |
1 |
| Sagemcom Broadband SAS | 448 |
1 |
| Siemens Enterprise Communications GmbH & Co. KG | 125 |
1 |
| Other owners | 3 |