- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/266 - Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system or merging a VOD unicast channel into a multicast channel
Patent holdings for IPC class H04N 21/266
Total number of patents in this class: 1334
10-year publication summary
143
|
160
|
161
|
149
|
116
|
103
|
100
|
85
|
95
|
30
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Google LLC | 38759 |
45 |
AT&T Intellectual Property I, L.P. | 9886 |
43 |
Samsung Electronics Co., Ltd. | 131630 |
38 |
Turner Broadcasting System, Inc. | 276 |
37 |
Comcast Cable Communications, LLC | 4075 |
37 |
Nagravision S.A. | 626 |
36 |
Time Warner Cable Enterprises LLC | 945 |
35 |
Sony Corporation | 32931 |
31 |
Rovi Guides, Inc. | 3236 |
31 |
DISH Technologies L.L.C. | 1666 |
31 |
The Nielsen Company (US), LLC | 2549 |
23 |
Huawei Technologies Co., Ltd. | 100781 |
22 |
ARRIS Enterprises LLC | 3432 |
22 |
Roku, Inc. | 1151 |
22 |
Intel Corporation | 45621 |
17 |
Amazon Technologies, Inc. | 24422 |
16 |
LG Electronics Inc. | 69257 |
15 |
Cisco Technology, Inc. | 18858 |
14 |
Apple Inc. | 50209 |
13 |
Verizon Patent And Licensing Inc. | 6900 |
13 |
Other owners | 793 |