- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 23/71 - Circuitry for evaluating the brightness variation
Patent holdings for IPC class H04N 23/71
Total number of patents in this class: 366
10-year publication summary
|
0
|
0
|
0
|
0
|
0
|
8
|
34
|
107
|
141
|
73
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 36841 |
50 |
| Samsung Electronics Co., Ltd. | 131630 |
32 |
| FUJIFILM Corporation | 27102 |
12 |
| Sony Group Corporation | 10730 |
12 |
| Qualcomm Incorporated | 76576 |
8 |
| Google LLC | 38759 |
8 |
| GoPro, Inc. | 1915 |
7 |
| Pixart Imaging Inc. | 1581 |
7 |
| Sony Semiconductor Solutions Corporation | 8770 |
7 |
| Anduril Industries Inc. | 109 |
7 |
| Snap Inc. | 4604 |
6 |
| Honor Device Co., Ltd. | 3469 |
6 |
| Apple Inc. | 50209 |
5 |
| Huawei Technologies Co., Ltd. | 100781 |
5 |
| Waymo LLC | 2816 |
5 |
| NEC Corporation | 32703 |
4 |
| Nikon Corporation | 7162 |
4 |
| Vivo Mobile Communication Co., Ltd. | 9833 |
4 |
| Texas Instruments Incorporated | 19376 |
3 |
| SK Hynix Inc. | 11030 |
3 |
| Other owners | 171 |