- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 5/58 - Control of contrast or brightness in dependence upon ambient light
Patent holdings for IPC class H04N 5/58
Total number of patents in this class: 227
10-year publication summary
|
19
|
23
|
21
|
25
|
20
|
20
|
17
|
5
|
5
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 158156 |
41 |
| Apple Inc. | 58936 |
13 |
| Dolby Laboratories Licensing Corporation | 4333 |
12 |
| LG Electronics Inc. | 75845 |
8 |
| Olympus Corporation | 12932 |
5 |
| Waymo LLC | 3321 |
5 |
| Intel Corporation | 47100 |
4 |
| Microsoft Technology Licensing, LLC | 54464 |
4 |
| Boe Technology Group Co., Ltd. | 44158 |
4 |
| Sharp Kabushiki Kaisha | 18525 |
4 |
| Enseo, LLC | 252 |
4 |
| Samsung Display Co., Ltd. | 38721 |
3 |
| Sony Corporation | 30139 |
3 |
| Mitsubishi Electric Corporation | 48097 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 34080 |
3 |
| Top Victory Investments Ltd. | 111 |
3 |
| Maxell Holdings, Ltd. | 1257 |
3 |
| Maxell, Ltd. | 3042 |
3 |
| Shenzhen Skyworth-rgb Electronic Co., Ltd. | 355 |
3 |
| DISH Ukraine L.L.C. | 51 |
3 |
| Other owners | 96 |