- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/68 - Circuit arrangements for preventing eavesdropping
Patent holdings for IPC class H04M 1/68
Total number of patents in this class: 492
10-year publication summary
|
47
|
46
|
43
|
24
|
30
|
15
|
22
|
7
|
3
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Malikie Innovations Limited | 7703 |
31 |
| Samsung Electronics Co., Ltd. | 131630 |
27 |
| Apple Inc. | 50209 |
13 |
| T-Mobile Innovations LLC | 3213 |
13 |
| Qualcomm Incorporated | 76576 |
12 |
| Ericsson | 20417 |
12 |
| Verizon Patent And Licensing Inc. | 6900 |
11 |
| Huawei Technologies Co., Ltd. | 100781 |
10 |
| Google LLC | 38759 |
9 |
| International Business Machines Corporation | 60644 |
7 |
| Nokia Technologies Oy | 15057 |
7 |
| Microsoft Technology Licensing, LLC | 51439 |
6 |
| Georgia Tech Research Corporation | 2453 |
6 |
| Palo Alto Networks, Inc. | 894 |
6 |
| T-Mobile USA, Inc. | 3668 |
6 |
| Tecore, Inc. | 35 |
6 |
| NEC Corporation | 32703 |
5 |
| Cisco Technology, Inc. | 18858 |
5 |
| Alcatel Lucent SA | 1723 |
5 |
| ZTE Corporation | 39218 |
5 |
| Other owners | 290 |