- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 23/70 - Circuitry for compensating brightness variation in the scene
Patent holdings for IPC class H04N 23/70
Total number of patents in this class: 133
10-year publication summary
|
0
|
0
|
0
|
2
|
4
|
18
|
38
|
31
|
30
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 152304 |
20 |
| Magna Electronics Inc. | 1393 |
7 |
| Sony Semiconductor Solutions Corporation | 11106 |
7 |
| Qualcomm Incorporated | 89294 |
6 |
| Google LLC | 43553 |
6 |
| Honor Device Co., Ltd. | 6209 |
6 |
| Apple Inc. | 57432 |
4 |
| Canon Inc. | 41921 |
4 |
| Guangzhou Tyrafos Semiconductor Technologies Co., Ltd | 62 |
4 |
| Denso Corporation | 25062 |
3 |
| Canon Kabushiki Kaisha | 7204 |
3 |
| Sony Group Corporation | 14990 |
3 |
| Microsoft Technology Licensing, LLC | 54220 |
2 |
| Stryker Corporation | 5218 |
2 |
| Waymo LLC | 3236 |
2 |
| Beijing Zitiao Network Technology Co., Ltd. | 5704 |
2 |
| LG Electronics Inc. | 74619 |
1 |
| NEC Corporation | 36475 |
1 |
| FUJIFILM Corporation | 30126 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 33168 |
1 |
| Other owners | 48 |