- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 15/02 - Severing connection after a predetermined time
Patent holdings for IPC class H04M 15/02
Total number of patents in this class: 62
10-year publication summary
|
1
|
7
|
9
|
9
|
13
|
7
|
5
|
3
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TracFone Wireless, Inc. | 288 |
11 |
| Voip-pal.com, Inc. | 35 |
4 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
4 |
| Samsung Electronics Co., Ltd. | 131630 |
3 |
| Ericsson | 20417 |
3 |
| ZTE Corporation | 39218 |
3 |
| Futurewei Technologies, Inc. | 3708 |
3 |
| Effortel Technologies | 5 |
3 |
| Verizon Patent And Licensing Inc. | 6900 |
2 |
| Nokia Solutions And Networks Oy | 5698 |
2 |
| Eturi Corp. | 27 |
2 |
| Landis+Gyr Innovations, Inc. | 152 |
2 |
| Starlogik IP LLC | 18 |
2 |
| Terranet AB | 30 |
2 |
| TextNow, Inc. | 43 |
2 |
| Nokia Corporation | 6965 |
1 |
| AT&T Mobility II LLC | 1982 |
1 |
| RingCentral, Inc. | 731 |
1 |
| Amdocs Development Limited | 521 |
1 |
| Archos | 23 |
1 |
| Other owners | 9 |