- 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: 639
10-year publication summary
|
89
|
71
|
88
|
61
|
35
|
21
|
26
|
17
|
8
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 54844 |
65 |
| Samsung Electronics Co., Ltd. | 146092 |
55 |
| LG Electronics Inc. | 73021 |
44 |
| Kyocera Corporation | 13799 |
32 |
| Smartip LLC | 27 |
16 |
| Huawei Technologies Co., Ltd. | 112438 |
12 |
| Microsoft Technology Licensing, LLC | 53720 |
12 |
| Firstface Co., Ltd. | 18 |
12 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 20960 |
12 |
| Nokia Technologies Oy | 17808 |
10 |
| Malikie Innovations Limited | 7133 |
10 |
| Raid One IP LLC | 32 |
9 |
| Qualcomm Incorporated | 85322 |
8 |
| NEC Corporation | 35652 |
8 |
| Nokia Corporation | 5644 |
8 |
| Sony Corporation | 31052 |
7 |
| Sony Ericsson Mobile Communications AB | 1783 |
7 |
| NTT DoCoMo, Inc. | 12952 |
7 |
| ZTE Corporation | 42423 |
7 |
| Xiaomi Inc. | 1710 |
7 |
| Other owners | 291 |