- 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: 969
10-year publication summary
|
0
|
0
|
0
|
9
|
44
|
155
|
198
|
237
|
211
|
106
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 157039 |
109 |
| Canon Inc. | 43059 |
100 |
| Qualcomm Incorporated | 91706 |
32 |
| FUJIFILM Corporation | 30458 |
30 |
| Sony Group Corporation | 15525 |
25 |
| Honor Device Co., Ltd. | 6738 |
22 |
| Google LLC | 44407 |
21 |
| Apple Inc. | 58592 |
20 |
| Sony Semiconductor Solutions Corporation | 11518 |
14 |
| GoPro, Inc. | 2108 |
13 |
| Pixart Imaging Inc. | 1722 |
12 |
| Panasonic Intellectual Property Management Co., Ltd. | 33792 |
11 |
| Huawei Technologies Co., Ltd. | 122656 |
10 |
| Snap Inc. | 6720 |
10 |
| Vivo Mobile Communication Co., Ltd. | 13582 |
10 |
| Anduril Industries Inc. | 209 |
9 |
| Intuitive Surgical Operations, Inc. | 4374 |
8 |
| Waymo LLC | 3305 |
8 |
| NEC Corporation | 36830 |
7 |
| Texas Instruments Incorporated | 19660 |
7 |
| Other owners | 491 |