- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/22 - IlluminationArrangements for improving the visibility of characters on dials
Patent holdings for IPC class H04M 1/22
Total number of patents in this class: 409
10-year publication summary
|
41
|
43
|
36
|
33
|
13
|
17
|
13
|
9
|
14
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 157300 |
39 |
| LG Electronics Inc. | 75591 |
24 |
| Apple Inc. | 58621 |
18 |
| Nokia Corporation | 4794 |
16 |
| Microsoft Technology Licensing, LLC | 54427 |
13 |
| Sony Ericsson Mobile Communications AB | 1403 |
12 |
| ZTE Corporation | 44075 |
12 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 23183 |
11 |
| Google LLC | 44448 |
8 |
| Vivo Mobile Communication Co., Ltd. | 13614 |
7 |
| Huawei Device Co., Ltd. | 2740 |
6 |
| Beijing Xiaomi Mobile Software Co., Ltd. | 14817 |
6 |
| NEC Corporation | 36860 |
4 |
| Semiconductor Energy Laboratory Co., Ltd. | 11780 |
4 |
| Huawei Technologies Co., Ltd. | 122871 |
4 |
| Motorola Solutions, Inc. | 4583 |
4 |
| Motorola, Inc. | 1291 |
4 |
| B & W Group Ltd | 351 |
4 |
| Case-mate, Inc. | 146 |
4 |
| Dongguan Memtech Electronic Products Co., Ltd. | 12 |
4 |
| Other owners | 205 |