- 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: 76
10-year publication summary
|
8
|
6
|
7
|
3
|
5
|
3
|
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. | 138 |
30 |
| NEC Platforms, Ltd. | 1139 |
12 |
| Peerless Network, Inc. | 18 |
6 |
| 8x8, Inc. | 448 |
4 |
| Nippon Telegraph and Telephone West Corporation | 24 |
3 |
| Nippon Telegraph And Telephone East Corporation | 25 |
3 |
| Huawei Technologies Co., Ltd. | 115366 |
2 |
| Damaka, Inc. | 86 |
2 |
| AT&T Intellectual Property I, L.P. | 9657 |
1 |
| Verizon Patent And Licensing Inc. | 7209 |
1 |
| ZTE Corporation | 42992 |
1 |
| Microsoft Technology Licensing, LLC | 54207 |
1 |
| Nippon Telegraph and Telephone Corporation | 16683 |
1 |
| Aiphone Co., Ltd. | 68 |
1 |
| BCE Inc. | 371 |
1 |
| Norwood Systems Pty Ltd | 12 |
1 |
| PMT | 2 |
1 |
| Sagemcom Broadband SAS | 465 |
1 |
| Siemens Enterprise Communications GmbH & Co. KG | 100 |
1 |
| Vonage Business Solutions, Inc. | 2 |
1 |
| Other owners | 2 |