- 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: 918
10-year publication summary
|
0
|
0
|
0
|
8
|
44
|
155
|
197
|
235
|
210
|
60
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 153093 |
106 |
| Canon Inc. | 42139 |
93 |
| Qualcomm Incorporated | 89928 |
30 |
| FUJIFILM Corporation | 30206 |
29 |
| Sony Group Corporation | 15109 |
24 |
| Google LLC | 43671 |
21 |
| Honor Device Co., Ltd. | 6356 |
21 |
| Apple Inc. | 57989 |
20 |
| Sony Semiconductor Solutions Corporation | 11176 |
14 |
| GoPro, Inc. | 2078 |
13 |
| Pixart Imaging Inc. | 1716 |
12 |
| Huawei Technologies Co., Ltd. | 119637 |
10 |
| Panasonic Intellectual Property Management Co., Ltd. | 33401 |
10 |
| Snap Inc. | 6544 |
10 |
| Vivo Mobile Communication Co., Ltd. | 13232 |
10 |
| Anduril Industries Inc. | 189 |
9 |
| Intuitive Surgical Operations, Inc. | 4283 |
8 |
| NEC Corporation | 36566 |
7 |
| Texas Instruments Incorporated | 19614 |
7 |
| Nikon Corporation | 7237 |
7 |
| Other owners | 457 |