- 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: 640
10-year publication summary
|
89
|
71
|
88
|
61
|
35
|
21
|
26
|
17
|
7
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 52932 |
63 |
| Samsung Electronics Co., Ltd. | 139551 |
55 |
| LG Electronics Inc. | 71185 |
44 |
| Kyocera Corporation | 13381 |
32 |
| Smartip LLC | 27 |
16 |
| Huawei Technologies Co., Ltd. | 107154 |
12 |
| Microsoft Technology Licensing, LLC | 52933 |
12 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 20111 |
12 |
| Firstface Co., Ltd. | 17 |
11 |
| Nokia Technologies Oy | 16656 |
10 |
| Malikie Innovations Limited | 7353 |
10 |
| Raid One IP LLC | 31 |
9 |
| Qualcomm Incorporated | 82165 |
8 |
| NEC Corporation | 34540 |
8 |
| Nokia Corporation | 6136 |
8 |
| Sony Corporation | 31518 |
7 |
| Sony Ericsson Mobile Communications AB | 1869 |
7 |
| NTT DoCoMo, Inc. | 12334 |
7 |
| ZTE Corporation | 41154 |
7 |
| Xiaomi Inc. | 1710 |
7 |
| Other owners | 295 |