- 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
|
12
|
21
|
19
|
23
|
21
|
25
|
19
|
20
|
16
|
1
|
| 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 |
36 |
| Apple Inc. | 50209 |
12 |
| Dolby Laboratories Licensing Corporation | 3883 |
12 |
| LG Electronics Inc. | 69257 |
9 |
| Olympus Corporation | 13667 |
5 |
| Intel Corporation | 45621 |
4 |
| Boe Technology Group Co., Ltd. | 35384 |
4 |
| Maxell Holdings, Ltd. | 1422 |
4 |
| Maxell, Ltd. | 2533 |
4 |
| Sharp Kabushiki Kaisha | 18957 |
4 |
| Enseo, LLC | 279 |
4 |
| Disney Enterprises, Inc. | 6012 |
3 |
| Samsung Display Co., Ltd. | 30585 |
3 |
| Sony Corporation | 32931 |
3 |
| Hewlett-Packard Development Company, L.P. | 28538 |
3 |
| Koninklijke Philips Electronics N.V. | 13133 |
3 |
| Mitsubishi Electric Corporation | 43934 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
3 |
| Microsoft Technology Licensing, LLC | 51439 |
3 |
| Ocuspecto Oy | 19 |
3 |
| Other owners | 102 |