- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/23 - Processing of content or additional dataElementary server operationsServer middleware
Patent holdings for IPC class H04N 21/23
Total number of patents in this class: 627
10-year publication summary
|
64
|
51
|
58
|
54
|
34
|
28
|
41
|
22
|
19
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75045 |
43 |
| Samsung Electronics Co., Ltd. | 154120 |
34 |
| Roku, Inc. | 1555 |
34 |
| META Platforms, Inc. | 6903 |
19 |
| Google LLC | 43852 |
16 |
| Sony Interactive Entertainment LLC | 2126 |
14 |
| Adeia Guides Inc. | 3751 |
13 |
| Amazon Technologies, Inc. | 27726 |
11 |
| Huawei Technologies Co., Ltd. | 120453 |
10 |
| Nokia Technologies Oy | 20346 |
9 |
| Comcast Cable Communications, LLC | 5042 |
9 |
| AT&T Intellectual Property I, L.P. | 9859 |
7 |
| ARRIS Enterprises LLC | 3438 |
7 |
| Korea Electronics Technology Institute | 1707 |
7 |
| The Nielsen Company (US), LLC | 2670 |
7 |
| Electronics and Telecommunications Research Institute | 9520 |
6 |
| Charter Communications Operating, LLC | 1519 |
6 |
| Digimarc Corporation | 722 |
6 |
| Sun Patent Trust | 2003 |
6 |
| Qualcomm Incorporated | 90374 |
5 |
| Other owners | 358 |