- All sections
- H - Electricity
- H04Q - Selecting
- H04Q 3/72 - Finding out and indicating number of calling subscriber
Patent holdings for IPC class H04Q 3/72
Total number of patents in this class: 55
10-year publication summary
|
5
|
3
|
8
|
4
|
4
|
3
|
2
|
3
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tango Networks, Inc. | 138 |
26 |
| RingCentral, Inc. | 768 |
3 |
| BCE Inc. | 398 |
3 |
| International Business Machines Corporation | 61344 |
2 |
| Nokia Corporation | 5597 |
2 |
| Ericsson | 21821 |
1 |
| Cisco Technology, Inc. | 19985 |
1 |
| SAP SE | 10018 |
1 |
| Verizon Patent And Licensing Inc. | 7116 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4975 |
1 |
| Nippon Telegraph and Telephone West Corporation | 25 |
1 |
| Nippon Telegraph And Telephone East Corporation | 25 |
1 |
| Capital One Services, LLC. | 9217 |
1 |
| Cassidian Finland Oy | 16 |
1 |
| Doximity, Inc. | 32 |
1 |
| Metaswitch Networks Ltd | 235 |
1 |
| NEC Platforms, Ltd. | 1151 |
1 |
| Nokia Inc. | 1483 |
1 |
| Nokia Siemens Networks Oy | 1537 |
1 |
| Siemens Enterprise Communications GmbH & Co. KG | 117 |
1 |
| Other owners | 4 |