- 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: 1404
10-year publication summary
|
157
|
157
|
148
|
112
|
99
|
99
|
87
|
100
|
90
|
43
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 42564 |
49 |
| Samsung Electronics Co., Ltd. | 147622 |
40 |
| Turner Broadcasting System, Inc. | 285 |
40 |
| Comcast Cable Communications, LLC | 4763 |
39 |
| AT&T Intellectual Property I, L.P. | 9588 |
38 |
| Nagravision S.A. | 582 |
34 |
| DISH Technologies L.L.C. | 1608 |
31 |
| Sony Corporation | 30929 |
30 |
| Time Warner Cable Enterprises LLC | 891 |
30 |
| Adeia Guides Inc. | 3365 |
28 |
| ARRIS Enterprises LLC | 3475 |
26 |
| The Nielsen Company (US), LLC | 2657 |
26 |
| Huawei Technologies Co., Ltd. | 113853 |
24 |
| Roku, Inc. | 1428 |
24 |
| Intel Corporation | 47129 |
17 |
| Amazon Technologies, Inc. | 26938 |
17 |
| LG Electronics Inc. | 73578 |
15 |
| Cisco Technology, Inc. | 21998 |
14 |
| Apple Inc. | 55446 |
13 |
| Verizon Patent And Licensing Inc. | 7140 |
13 |
| Other owners | 856 |