- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/663 - Preventing unauthorised calls to a telephone set
Patent holdings for IPC class H04M 1/663
Total number of patents in this class: 419
10-year publication summary
|
37
|
45
|
40
|
33
|
26
|
42
|
26
|
22
|
10
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 50209 |
30 |
| Huawei Technologies Co., Ltd. | 100781 |
24 |
| Microsoft Technology Licensing, LLC | 51439 |
21 |
| Samsung Electronics Co., Ltd. | 131630 |
18 |
| Malikie Innovations Limited | 7703 |
15 |
| International Business Machines Corporation | 60644 |
13 |
| ZTE Corporation | 39218 |
13 |
| OnePIN, Inc. | 70 |
10 |
| Qualcomm Incorporated | 76576 |
9 |
| Tencent Technology (Shenzhen) Company Limited | 12951 |
8 |
| Motorola, Inc. | 2873 |
7 |
| Ericsson | 20417 |
6 |
| Beijing Qihoo Technology Company Limited | 952 |
6 |
| CenturyLink Intellectual Property LLC | 1130 |
6 |
| Google LLC | 38759 |
6 |
| AT&T Intellectual Property I, L.P. | 9886 |
5 |
| Huawei Device Co., Ltd. | 2758 |
5 |
| First Orion Corp. | 140 |
5 |
| Ooma, Inc. | 73 |
5 |
| Qizhi Software (Beijing) Co. Ltd | 549 |
5 |
| Other owners | 202 |