- 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: 407
10-year publication summary
|
45
|
40
|
33
|
26
|
43
|
26
|
22
|
12
|
10
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 52845 |
34 |
| Huawei Technologies Co., Ltd. | 106915 |
23 |
| Microsoft Technology Licensing, LLC | 52911 |
21 |
| Samsung Electronics Co., Ltd. | 139302 |
17 |
| ZTE Corporation | 41096 |
13 |
| Malikie Innovations Limited | 7367 |
13 |
| International Business Machines Corporation | 60178 |
12 |
| OnePIN, Inc. | 71 |
10 |
| Qualcomm Incorporated | 82009 |
9 |
| Tencent Technology (Shenzhen) Company Limited | 14094 |
8 |
| Google LLC | 40924 |
7 |
| Beijing Qihoo Technology Company Limited | 950 |
6 |
| CenturyLink Intellectual Property LLC | 1183 |
6 |
| YouMail, Inc. | 49 |
6 |
| AT&T Intellectual Property I, L.P. | 9345 |
5 |
| Ericsson | 21171 |
5 |
| Motorola, Inc. | 2382 |
5 |
| Huawei Device Co., Ltd. | 2758 |
5 |
| First Orion Corp. | 159 |
5 |
| Ooma, Inc. | 77 |
5 |
| Other owners | 192 |