- 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: 628
10-year publication summary
|
112
|
89
|
70
|
88
|
60
|
34
|
21
|
23
|
17
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 50209 |
61 |
| Samsung Electronics Co., Ltd. | 131630 |
55 |
| LG Electronics Inc. | 69257 |
45 |
| Kyocera Corporation | 12735 |
32 |
| Huawei Technologies Co., Ltd. | 100781 |
12 |
| Microsoft Technology Licensing, LLC | 51439 |
12 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 18739 |
12 |
| Nokia Technologies Oy | 15057 |
11 |
| Firstface Co., Ltd. | 17 |
11 |
| Malikie Innovations Limited | 7703 |
10 |
| Qualcomm Incorporated | 76576 |
9 |
| Raid One IP LLC | 29 |
9 |
| Sony Corporation | 32931 |
8 |
| NEC Corporation | 32703 |
8 |
| Nokia Corporation | 6965 |
8 |
| Sony Ericsson Mobile Communications AB | 2014 |
7 |
| NTT DoCoMo, Inc. | 11501 |
7 |
| ZTE Corporation | 39218 |
7 |
| Xiaomi Inc. | 1683 |
7 |
| Cell Command, Inc. | 9 |
7 |
| Other owners | 290 |