- 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: 114
10-year publication summary
|
1
|
0
|
0
|
0
|
2
|
4
|
17
|
36
|
30
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 147003 |
15 |
| Magna Electronics Inc. | 1385 |
7 |
| Sony Semiconductor Solutions Corporation | 10529 |
7 |
| Qualcomm Incorporated | 85914 |
6 |
| Honor Device Co., Ltd. | 5357 |
6 |
| Apple Inc. | 55229 |
4 |
| Google LLC | 42379 |
4 |
| Sony Group Corporation | 13963 |
3 |
| Canon Inc. | 40165 |
2 |
| Microsoft Technology Licensing, LLC | 53805 |
2 |
| Stryker Corporation | 5052 |
2 |
| Waymo LLC | 3125 |
2 |
| Canon Kabushiki Kaisha | 7070 |
2 |
| Guangzhou Tyrafos Semiconductor Technologies Co., Ltd | 62 |
2 |
| Beijing Zitiao Network Technology Co., Ltd. | 4459 |
2 |
| LG Electronics Inc. | 73383 |
1 |
| NEC Corporation | 35793 |
1 |
| Denso Corporation | 24372 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 31598 |
1 |
| NVIDIA Corporation | 7282 |
1 |
| Other owners | 43 |