- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/20 - Servers specifically adapted for the distribution of content, e.g. VOD serversOperations thereof
Patent holdings for IPC class H04N 21/20
Total number of patents in this class: 348
10-year publication summary
|
41
|
47
|
28
|
38
|
39
|
27
|
22
|
15
|
13
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Roku, Inc. | 1448 |
41 |
| Comcast Cable Communications, LLC | 4836 |
17 |
| Google LLC | 42942 |
15 |
| LG Electronics Inc. | 73619 |
8 |
| Samsung Electronics Co., Ltd. | 148649 |
7 |
| Avago Technologies International Sales Pte. Limited | 8677 |
6 |
| Verizon Patent And Licensing Inc. | 7204 |
5 |
| Nokia Technologies Oy | 19015 |
5 |
| Entrix Co., Ltd. | 16 |
5 |
| Time Warner Cable Enterprises LLC | 887 |
5 |
| Adeia Guides Inc. | 3465 |
5 |
| Contentnexus LLC | 96 |
5 |
| Huawei Technologies Co., Ltd. | 115187 |
4 |
| ZTE Corporation | 42934 |
4 |
| ARRIS Enterprises LLC | 3490 |
4 |
| Hughes Network Systems, LLC | 1315 |
4 |
| Vimmi Communications Ltd. | 4 |
4 |
| DISH Network Technologies India Private Limited | 396 |
4 |
| AT&T Intellectual Property I, L.P. | 9650 |
3 |
| Viacom International Inc. | 1534 |
3 |
| Other owners | 194 |