- 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: 59
10-year publication summary
1
|
0
|
1
|
0
|
2
|
5
|
8
|
21
|
16
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
8x8, Inc. | 398 |
10 |
Tango Networks, Inc. | 134 |
7 |
Mitel Networks Corporation | 455 |
4 |
NEC Platforms, Ltd. | 1106 |
4 |
Zoom Video Communications, Inc. | 819 |
4 |
Carbyne Ltd. | 20 |
3 |
RapidDeploy, Inc. | 43 |
3 |
BlackBerry Limited | 5958 |
2 |
Electronics and Telecommunications Research Institute | 8830 |
2 |
American Tel-a-systems, Inc. | 20 |
2 |
Apple Inc. | 50209 |
1 |
Research In Motion Limited | 2283 |
1 |
Cisco Technology, Inc. | 18858 |
1 |
Rockwell Collins, Inc. | 2402 |
1 |
RingCentral, Inc. | 731 |
1 |
BCE Inc. | 431 |
1 |
Intracom Systems, LLC. | 6 |
1 |
IPC Systems, Inc. | 60 |
1 |
Level 3 Communications, LLC | 1428 |
1 |
Summit-tech | 3 |
1 |
Other owners | 8 |