- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/22 - Illumination; Arrangements for improving the visibility of characters on dials
Patent holdings for IPC class H04M 1/22
Total number of patents in this class: 426
10-year publication summary
|
31
|
51
|
41
|
43
|
36
|
33
|
13
|
15
|
11
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 131630 |
35 |
| LG Electronics Inc. | 69257 |
28 |
| Nokia Corporation | 6965 |
22 |
| Sony Ericsson Mobile Communications AB | 2014 |
21 |
| Apple Inc. | 50209 |
14 |
| Microsoft Technology Licensing, LLC | 51439 |
13 |
| ZTE Corporation | 39218 |
12 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 18739 |
11 |
| Google LLC | 38759 |
8 |
| Vivo Mobile Communication Co., Ltd. | 9833 |
7 |
| Motorola, Inc. | 2873 |
6 |
| Huawei Device Co., Ltd. | 2758 |
6 |
| Beijing Xiaomi Mobile Software Co., Ltd. | 8764 |
6 |
| Motorola Solutions, Inc. | 4355 |
5 |
| NEC Platforms, Ltd. | 1106 |
5 |
| NEC Corporation | 32703 |
4 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
4 |
| Koninklijke Philips Electronics N.V. | 13133 |
4 |
| B & W Group Ltd | 344 |
4 |
| Case-mate, Inc. | 129 |
4 |
| Other owners | 207 |