- 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: 415
10-year publication summary
|
51
|
40
|
42
|
36
|
32
|
12
|
17
|
12
|
10
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 147787 |
36 |
| LG Electronics Inc. | 73588 |
27 |
| Nokia Corporation | 5527 |
19 |
| Sony Ericsson Mobile Communications AB | 1742 |
16 |
| Apple Inc. | 55491 |
15 |
| Microsoft Technology Licensing, LLC | 53968 |
13 |
| ZTE Corporation | 42752 |
12 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 21251 |
11 |
| Google LLC | 42628 |
8 |
| Vivo Mobile Communication Co., Ltd. | 12537 |
7 |
| Huawei Device Co., Ltd. | 2753 |
6 |
| Beijing Xiaomi Mobile Software Co., Ltd. | 12717 |
6 |
| Motorola Solutions, Inc. | 4418 |
5 |
| Motorola, Inc. | 1947 |
5 |
| NEC Corporation | 36108 |
4 |
| Semiconductor Energy Laboratory Co., Ltd. | 11471 |
4 |
| Koninklijke Philips Electronics N.V. | 9235 |
4 |
| B & W Group Ltd | 348 |
4 |
| Case-mate, Inc. | 136 |
4 |
| Dongguan Memtech Electronic Products Co., Ltd. | 12 |
4 |
| Other owners | 205 |