- All sections
- H - Electricity
- H04W - Wireless communication networks
- H04W 8/28 - Number portability
Patent holdings for IPC class H04W 8/28
Total number of patents in this class: 185
10-year publication summary
|
18
|
5
|
18
|
14
|
13
|
26
|
22
|
9
|
8
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ZTE Corporation | 42052 |
18 |
| Huawei Technologies Co., Ltd. | 111237 |
17 |
| T-Mobile USA, Inc. | 4050 |
9 |
| Qualcomm Incorporated | 84634 |
7 |
| Softrend Ipl, LLC | 10 |
7 |
| Samsung Electronics Co., Ltd. | 144426 |
6 |
| Cisco Technology, Inc. | 19655 |
5 |
| Electronics and Telecommunications Research Institute | 9358 |
5 |
| Telefonaktiebolaget LM Ericsson (publ) | 27825 |
5 |
| Apple Inc. | 54527 |
4 |
| International Business Machines Corporation | 61123 |
4 |
| Ericsson | 21622 |
4 |
| Nokia Technologies Oy | 17579 |
4 |
| Kona I Co., Ltd. | 45 |
4 |
| LG Electronics Inc. | 72559 |
3 |
| NEC Corporation | 35424 |
3 |
| Roamware, Inc. | 51 |
3 |
| TracFone Wireless, Inc. | 176 |
3 |
| Prove Identity, Inc. | 146 |
3 |
| The Boeing Company | 20025 |
2 |
| Other owners | 69 |