- 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
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75654 |
28 |
| Gui Global Products, LTD, GUI Global Management, LLC, Texas | 39 |
21 |
| ZTE Corporation | 44159 |
19 |
| Apple Inc. | 58705 |
17 |
| ElectroCore, Inc. | 159 |
17 |
| Kyocera Corporation | 14335 |
14 |
| Samsung Electronics Co., Ltd. | 157557 |
11 |
| STM Management Pty Ltd | 62 |
10 |
| KT & G Corporation | 3121 |
9 |
| DDC Technology, LLC | 10 |
9 |
| Huawei Technologies Co., Ltd. | 123282 |
8 |
| The Boeing Company | 20160 |
7 |
| Sony Ericsson Mobile Communications AB | 1392 |
5 |
| Panasonic Corporation | 19060 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
4 |
| HTC Corporation | 2415 |
4 |
| Motorola Mobility LLC | 2853 |
4 |
| Sensirion AG | 208 |
4 |
| Vapor Communications, Inc. | 17 |
4 |
| Qualcomm Incorporated | 91997 |
3 |
| Other owners | 315 |