- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/21 - Server components or server architectures
Patent holdings for IPC class H04N 21/21
Total number of patents in this class: 221
10-year publication summary
|
23
|
18
|
35
|
30
|
24
|
22
|
14
|
8
|
7
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Roku, Inc. | 1617 |
37 |
| Comcast Cable Communications, LLC | 5199 |
8 |
| Sony Interactive Entertainment LLC | 2148 |
8 |
| AT&T Intellectual Property I, L.P. | 10002 |
6 |
| ZTE Corporation | 44255 |
6 |
| NEC Corporation | 37168 |
5 |
| Adeia Media Solutions Inc. | 271 |
5 |
| Samsung Electronics Co., Ltd. | 158442 |
4 |
| LG Electronics Inc. | 75855 |
4 |
| AT&T Mobility II LLC | 1889 |
4 |
| The Nielsen Company (US), LLC | 2701 |
4 |
| ServiceNow, Inc. | 2160 |
4 |
| Audacy Operations, LLC | 154 |
4 |
| Amazon Technologies, Inc. | 28193 |
3 |
| Digimarc Corporation | 226 |
3 |
| DIRECTV, LLC | 780 |
3 |
| Google LLC | 44614 |
3 |
| Adeia Guides Inc. | 3952 |
3 |
| Contentnexus LLC | 96 |
3 |
| Dmrc LLC | 484 |
3 |
| Other owners | 101 |