- 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 |