- 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: 521
10-year publication summary
|
72
|
69
|
70
|
55
|
59
|
52
|
61
|
39
|
22
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 69257 |
28 |
| ZTE Corporation | 39218 |
21 |
| Gui Global Products, LTD, GUI Global Management, LLC, Texas | 37 |
19 |
| Kyocera Corporation | 12735 |
16 |
| ElectroCore, Inc. | 137 |
16 |
| Samsung Electronics Co., Ltd. | 131630 |
11 |
| Apple Inc. | 50209 |
11 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
11 |
| Huawei Technologies Co., Ltd. | 100781 |
8 |
| DDC Technology, LLC | 9 |
8 |
| The Boeing Company | 19843 |
7 |
| STM Management Pty Ltd | 52 |
7 |
| Sony Ericsson Mobile Communications AB | 2014 |
6 |
| Sharp Kabushiki Kaisha | 18957 |
6 |
| NEC Corporation | 32703 |
5 |
| Panasonic Corporation | 20786 |
5 |
| Shanghai Topret Industrial Design Co., Ltd. | 12 |
5 |
| Nokia Corporation | 6965 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
4 |
| HTC Corporation | 2219 |
4 |
| Other owners | 319 |