- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/8352 - Generation of protective data, e.g. certificates involving content or source identification data, e.g. UMID [Unique Material Identifier]
Patent holdings for IPC class H04N 21/8352
Total number of patents in this class: 595
10-year publication summary
65
|
89
|
72
|
53
|
66
|
62
|
50
|
33
|
42
|
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 |
77 |
Roku, Inc. | 1151 |
61 |
Google LLC | 38759 |
21 |
Turner Broadcasting System, Inc. | 276 |
20 |
Samba TV, Inc. | 60 |
19 |
LG Electronics Inc. | 69257 |
13 |
Comcast Cable Communications, LLC | 4075 |
12 |
Rovi Guides, Inc. | 3236 |
12 |
Samsung Electronics Co., Ltd. | 131630 |
10 |
DivX, LLC | 274 |
10 |
Google Technology Holdings LLC | 2658 |
9 |
Saturn Licensing LLC | 1502 |
9 |
DISH Technologies L.L.C. | 1666 |
9 |
Verizon Patent And Licensing Inc. | 6900 |
8 |
Disney Enterprises, Inc. | 6012 |
7 |
Sony Corporation | 32931 |
7 |
Tencent Technology (Shenzhen) Company Limited | 12951 |
7 |
Inscape Data, Inc. | 102 |
7 |
AT&T Intellectual Property I, L.P. | 9886 |
6 |
Huawei Technologies Co., Ltd. | 100781 |
6 |
Other owners | 265 |