- 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: 523
10-year publication summary
|
69
|
70
|
55
|
59
|
52
|
61
|
43
|
25
|
30
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 72737 |
28 |
| ZTE Corporation | 42146 |
20 |
| Gui Global Products, LTD, GUI Global Management, LLC, Texas | 38 |
20 |
| Apple Inc. | 54610 |
17 |
| ElectroCore, Inc. | 152 |
16 |
| Kyocera Corporation | 13758 |
15 |
| Samsung Electronics Co., Ltd. | 145025 |
11 |
| STM Management Pty Ltd | 61 |
9 |
| DDC Technology, LLC | 10 |
9 |
| Huawei Technologies Co., Ltd. | 111764 |
8 |
| KT & G Corporation | 2611 |
8 |
| The Boeing Company | 20031 |
7 |
| Sony Ericsson Mobile Communications AB | 1799 |
6 |
| NEC Corporation | 35509 |
5 |
| Panasonic Corporation | 20142 |
5 |
| Sharp Kabushiki Kaisha | 18781 |
5 |
| Shanghai Topret Industrial Design Co., Ltd. | 12 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 31201 |
4 |
| HTC Corporation | 2292 |
4 |
| Motorola Mobility LLC | 2644 |
4 |
| Other owners | 317 |