- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/67 - Preventing unauthorised calls from a telephone set by electronic means
Patent holdings for IPC class H04M 1/67
Total number of patents in this class: 635
10-year publication summary
|
89
|
71
|
88
|
61
|
35
|
21
|
25
|
17
|
8
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 55846 |
65 |
| Samsung Electronics Co., Ltd. | 148402 |
55 |
| LG Electronics Inc. | 73790 |
44 |
| Kyocera Corporation | 14000 |
32 |
| Smartip LLC | 27 |
16 |
| Huawei Technologies Co., Ltd. | 114756 |
12 |
| Microsoft Technology Licensing, LLC | 54095 |
12 |
| Firstface Co., Ltd. | 18 |
12 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 21442 |
12 |
| Nokia Technologies Oy | 18608 |
10 |
| Raid One IP LLC | 34 |
10 |
| Malikie Innovations Limited | 7014 |
10 |
| Qualcomm Incorporated | 86899 |
8 |
| NEC Corporation | 36164 |
8 |
| Sony Corporation | 30885 |
7 |
| Sony Ericsson Mobile Communications AB | 1711 |
7 |
| NTT DoCoMo, Inc. | 13507 |
7 |
| ZTE Corporation | 42863 |
7 |
| Xiaomi Inc. | 1716 |
7 |
| Global Tel*Link Corporation | 425 |
7 |
| Other owners | 287 |