- 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: 186
10-year publication summary
|
13
|
18
|
5
|
18
|
14
|
13
|
26
|
22
|
9
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ZTE Corporation | 39218 |
19 |
| Huawei Technologies Co., Ltd. | 100781 |
18 |
| T-Mobile USA, Inc. | 3668 |
8 |
| Qualcomm Incorporated | 76576 |
7 |
| Samsung Electronics Co., Ltd. | 131630 |
6 |
| Softrend Ipl, LLC | 9 |
6 |
| Electronics and Telecommunications Research Institute | 8830 |
5 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
5 |
| Apple Inc. | 50209 |
4 |
| International Business Machines Corporation | 60644 |
4 |
| Ericsson | 20417 |
4 |
| Cisco Technology, Inc. | 18858 |
4 |
| Nokia Technologies Oy | 15057 |
4 |
| Kona I Co., Ltd. | 47 |
4 |
| Roamware, Inc. | 63 |
4 |
| LG Electronics Inc. | 69257 |
3 |
| NEC Corporation | 32703 |
3 |
| Payfone, Inc. | 72 |
3 |
| TracFone Wireless, Inc. | 288 |
3 |
| The Boeing Company | 19843 |
2 |
| Other owners | 70 |