- 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: 590
10-year publication summary
|
86
|
70
|
64
|
51
|
59
|
53
|
34
|
24
|
27
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 69257 |
43 |
| Samsung Electronics Co., Ltd. | 131630 |
34 |
| Roku, Inc. | 1151 |
33 |
| Sony Interactive Entertainment LLC | 1946 |
22 |
| META Platforms, Inc. | 7514 |
19 |
| Google LLC | 38759 |
12 |
| Huawei Technologies Co., Ltd. | 100781 |
10 |
| Amazon Technologies, Inc. | 24422 |
9 |
| Nokia Technologies Oy | 15057 |
9 |
| AT&T Intellectual Property I, L.P. | 9886 |
8 |
| The Nielsen Company (US), LLC | 2549 |
8 |
| Comcast Cable Communications, LLC | 4075 |
7 |
| Korea Electronics Technology Institute | 1358 |
7 |
| Electronics and Telecommunications Research Institute | 8830 |
6 |
| ARRIS Enterprises LLC | 3432 |
6 |
| Digimarc Corporation | 787 |
6 |
| Rovi Guides, Inc. | 3236 |
6 |
| Qualcomm Incorporated | 76576 |
5 |
| Viacom International Inc. | 1536 |
5 |
| Google Inc. | 4362 |
5 |
| Other owners | 330 |