- 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: 1448
10-year publication summary
|
161
|
149
|
116
|
103
|
101
|
89
|
104
|
91
|
63
|
46
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 44482 |
49 |
| Samsung Electronics Co., Ltd. | 157719 |
41 |
| Turner Broadcasting System, Inc. | 286 |
40 |
| Comcast Cable Communications, LLC | 5179 |
40 |
| AT&T Intellectual Property I, L.P. | 9995 |
37 |
| Nagravision S.A. | 529 |
33 |
| DISH Technologies L.L.C. | 1601 |
31 |
| Sony Corporation | 30181 |
30 |
| Time Warner Cable Enterprises LLC | 853 |
30 |
| ARRIS Enterprises LLC | 3414 |
29 |
| The Nielsen Company (US), LLC | 2692 |
27 |
| Adeia Guides Inc. | 3923 |
26 |
| Roku, Inc. | 1605 |
25 |
| Huawei Technologies Co., Ltd. | 123385 |
23 |
| Amazon Technologies, Inc. | 28087 |
18 |
| Intel Corporation | 47106 |
17 |
| Nagravision SARL | 365 |
16 |
| LG Electronics Inc. | 75694 |
15 |
| Hulu, LLC | 425 |
14 |
| DISH Network L.L.C. | 952 |
14 |
| Other owners | 893 |