- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/23 - Processing of content or additional data; Elementary server operations; Server middleware
Patent holdings for IPC class H04N 21/23
Total number of patents in this class: 602
10-year publication summary
|
70
|
64
|
51
|
58
|
54
|
34
|
28
|
34
|
11
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 71039 |
43 |
| Samsung Electronics Co., Ltd. | 139001 |
34 |
| Roku, Inc. | 1273 |
33 |
| Sony Interactive Entertainment LLC | 2003 |
19 |
| META Platforms, Inc. | 7199 |
19 |
| Google LLC | 40853 |
14 |
| Amazon Technologies, Inc. | 25909 |
11 |
| Adeia Guides Inc. | 2847 |
10 |
| Huawei Technologies Co., Ltd. | 106762 |
9 |
| Nokia Technologies Oy | 16542 |
9 |
| The Nielsen Company (US), LLC | 2645 |
9 |
| Comcast Cable Communications, LLC | 4449 |
8 |
| AT&T Intellectual Property I, L.P. | 9337 |
7 |
| Korea Electronics Technology Institute | 1521 |
7 |
| Electronics and Telecommunications Research Institute | 9021 |
6 |
| ARRIS Enterprises LLC | 3437 |
6 |
| Digimarc Corporation | 760 |
6 |
| Qualcomm Incorporated | 81865 |
5 |
| Viacom International Inc. | 1514 |
5 |
| Google Inc. | 4298 |
5 |
| Other owners | 337 |