- 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: 618
10-year publication summary
|
65
|
62
|
47
|
57
|
52
|
32
|
27
|
38
|
18
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73680 |
42 |
| Samsung Electronics Co., Ltd. | 148765 |
34 |
| Roku, Inc. | 1453 |
34 |
| META Platforms, Inc. | 7016 |
19 |
| Sony Interactive Entertainment LLC | 2089 |
16 |
| Google LLC | 43003 |
15 |
| Adeia Guides Inc. | 3475 |
12 |
| Amazon Technologies, Inc. | 27183 |
11 |
| Huawei Technologies Co., Ltd. | 115366 |
10 |
| Nokia Technologies Oy | 19084 |
9 |
| Comcast Cable Communications, LLC | 4839 |
9 |
| AT&T Intellectual Property I, L.P. | 9657 |
7 |
| Korea Electronics Technology Institute | 1669 |
7 |
| The Nielsen Company (US), LLC | 2651 |
7 |
| Electronics and Telecommunications Research Institute | 9460 |
6 |
| ARRIS Enterprises LLC | 3485 |
6 |
| Digimarc Corporation | 730 |
6 |
| Qualcomm Incorporated | 87362 |
5 |
| Viacom International Inc. | 1534 |
5 |
| ZTE Corporation | 42992 |
5 |
| Other owners | 353 |