- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/21 - Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
Patent holdings for IPC class H04M 1/21
Total number of patents in this class: 518
10-year publication summary
|
70
|
55
|
59
|
52
|
61
|
43
|
25
|
30
|
23
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75973 |
28 |
| Gui Global Products, LTD, GUI Global Management, LLC, Texas | 39 |
21 |
| ZTE Corporation | 44326 |
19 |
| Apple Inc. | 59177 |
17 |
| ElectroCore, Inc. | 160 |
17 |
| Kyocera Corporation | 14445 |
14 |
| Samsung Electronics Co., Ltd. | 158842 |
11 |
| KT & G Corporation | 3166 |
10 |
| STM Management Pty Ltd | 62 |
10 |
| DDC Technology, LLC | 10 |
9 |
| Huawei Technologies Co., Ltd. | 124630 |
8 |
| The Boeing Company | 20197 |
7 |
| Panasonic Corporation | 18751 |
5 |
| Sony Ericsson Mobile Communications AB | 1347 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 34403 |
4 |
| HTC Corporation | 2425 |
4 |
| Motorola Mobility LLC | 2873 |
4 |
| Sensirion AG | 209 |
4 |
| Vapor Communications, Inc. | 16 |
4 |
| Qualcomm Incorporated | 93172 |
3 |
| Other owners | 315 |