- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/19 - Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
Patent holdings for IPC class H04M 1/19
Total number of patents in this class: 128
10-year publication summary
|
13
|
17
|
14
|
9
|
13
|
5
|
13
|
10
|
8
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ZTE Corporation | 39218 |
16 |
| Huawei Technologies Co., Ltd. | 100781 |
14 |
| Vivo Mobile Communication Co., Ltd. | 9833 |
8 |
| Samsung Electronics Co., Ltd. | 131630 |
6 |
| Quiet, Inc. | 12 |
6 |
| Hewlett-Packard Development Company, L.P. | 28538 |
5 |
| Honor Device Co., Ltd. | 3469 |
4 |
| Otter Products, LLC | 868 |
3 |
| Ericsson | 20417 |
2 |
| Nokia Technologies Oy | 15057 |
2 |
| Goertek Inc. | 2477 |
2 |
| Huizhou TCL Mobile Communication Co., Ltd. | 1085 |
2 |
| OSOM Products Inc | 37 |
2 |
| Mutum GmbH | 2 |
2 |
| BlackBerry Limited | 5958 |
1 |
| Sony Ericsson Mobile Communications AB | 2014 |
1 |
| Hon Hai Precision Industry Co., Ltd. | 4157 |
1 |
| Texas Instruments Incorporated | 19376 |
1 |
| Texas Instruments Japan, Ltd. | 1656 |
1 |
| Ricoh Company, Ltd. | 13266 |
1 |
| Other owners | 48 |