- 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: 343
10-year publication summary
|
28
|
48
|
51
|
42
|
45
|
35
|
30
|
17
|
22
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Nielsen Company (US), LLC | 2549 |
26 |
| Dolby International AB | 1076 |
17 |
| Google LLC | 38759 |
15 |
| Huawei Technologies Co., Ltd. | 100781 |
13 |
| Digimarc Corporation | 787 |
13 |
| Roku, Inc. | 1151 |
11 |
| Fujitsu Limited | 19265 |
10 |
| Verance Corporation | 81 |
10 |
| Sharp Corporation | 10015 |
8 |
| ARRIS Enterprises LLC | 3432 |
7 |
| Synamedia Limited | 354 |
7 |
| Comcast Cable Communications, LLC | 4075 |
6 |
| InterDigital Madison Patent Holdings | 615 |
6 |
| Sony Corporation | 32931 |
5 |
| Dolby Laboratories Licensing Corporation | 3883 |
5 |
| V-Nova International Ltd. | 288 |
5 |
| Samsung Electronics Co., Ltd. | 131630 |
4 |
| Qualcomm Incorporated | 76576 |
4 |
| Cisco Technology, Inc. | 18858 |
4 |
| Contentarmor | 17 |
4 |
| Other owners | 163 |