- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 65/1053 - IP private branch exchange [PBX] functionality entities or arrangements
Patent holdings for IPC class H04L 65/1053
Total number of patents in this class: 71
10-year publication summary
|
0
|
1
|
0
|
1
|
4
|
8
|
21
|
16
|
4
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 8x8, Inc. | 449 |
12 |
| Tango Networks, Inc. | 138 |
7 |
| IPC Systems, Inc. | 82 |
4 |
| NEC Platforms, Ltd. | 1140 |
4 |
| Carbyne Ltd. | 27 |
4 |
| Mitel Networks Corporation | 189 |
3 |
| Zoom Video Communications, Inc. | 559 |
3 |
| RapidDeploy, Inc. | 46 |
3 |
| Zoom Communications, Inc. | 881 |
3 |
| Apple Inc. | 56466 |
2 |
| Electronics and Telecommunications Research Institute | 9359 |
2 |
| American Tel-a-systems, Inc. | 19 |
2 |
| BlackBerry Limited | 5261 |
1 |
| Research In Motion Limited | 1721 |
1 |
| Ericsson | 22003 |
1 |
| Cisco Technology, Inc. | 22107 |
1 |
| Rockwell Collins, Inc. | 2530 |
1 |
| RingCentral, Inc. | 779 |
1 |
| BCE Inc. | 371 |
1 |
| Level 3 Communications, LLC | 1279 |
1 |
| Other owners | 14 |