- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 19/467 - Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
Patent holdings for IPC class H04N 19/467
Total number of patents in this class: 357
10-year publication summary
|
46
|
45
|
42
|
43
|
32
|
27
|
17
|
23
|
21
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Nielsen Company (US), LLC | 2657 |
32 |
| Dolby International AB | 1030 |
18 |
| Google LLC | 42333 |
16 |
| Huawei Technologies Co., Ltd. | 113064 |
14 |
| Digimarc Corporation | 739 |
13 |
| Verance Corporation | 82 |
10 |
| Fujitsu Limited | 18402 |
9 |
| Sharp Corporation | 10265 |
8 |
| ARRIS Enterprises LLC | 3452 |
8 |
| Comcast Cable Communications, LLC | 4713 |
7 |
| Synamedia Limited | 340 |
7 |
| InterDigital Madison Patent Holdings | 523 |
6 |
| Qualcomm Incorporated | 85833 |
5 |
| Sony Corporation | 31025 |
5 |
| Canon Inc. | 40095 |
5 |
| Dolby Laboratories Licensing Corporation | 4135 |
5 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 21084 |
5 |
| V-Nova International Ltd. | 339 |
5 |
| Inscape Data, Inc. | 107 |
5 |
| Samsung Electronics Co., Ltd. | 146811 |
4 |
| Other owners | 170 |