- 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: 1363
10-year publication summary
|
161
|
161
|
149
|
116
|
103
|
101
|
86
|
101
|
88
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 40754 |
47 |
| Samsung Electronics Co., Ltd. | 138518 |
40 |
| Turner Broadcasting System, Inc. | 280 |
40 |
| AT&T Intellectual Property I, L.P. | 9330 |
38 |
| Comcast Cable Communications, LLC | 4430 |
38 |
| Nagravision S.A. | 602 |
36 |
| DISH Technologies L.L.C. | 1664 |
31 |
| Sony Corporation | 31565 |
30 |
| Time Warner Cable Enterprises LLC | 923 |
30 |
| Adeia Guides Inc. | 2817 |
26 |
| The Nielsen Company (US), LLC | 2640 |
25 |
| ARRIS Enterprises LLC | 3441 |
24 |
| Huawei Technologies Co., Ltd. | 106498 |
22 |
| Roku, Inc. | 1265 |
22 |
| Intel Corporation | 46097 |
17 |
| Amazon Technologies, Inc. | 25836 |
16 |
| LG Electronics Inc. | 70898 |
15 |
| Cisco Technology, Inc. | 19312 |
14 |
| Verizon Patent And Licensing Inc. | 6937 |
13 |
| ZTE Corporation | 41038 |
13 |
| Other owners | 826 |