- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/2347 - Processing of video elementary streams, e.g. splicing of video streams or manipulating MPEG-4 scene graphs involving video stream encryption
Patent holdings for IPC class H04N 21/2347
Total number of patents in this class: 804
10-year publication summary
|
107
|
92
|
68
|
95
|
73
|
67
|
54
|
49
|
40
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Roku, Inc. | 1273 |
33 |
| Samsung Electronics Co., Ltd. | 139001 |
30 |
| Google LLC | 40853 |
26 |
| Comcast Cable Communications, LLC | 4449 |
22 |
| DISH Technologies L.L.C. | 1664 |
21 |
| DivX, LLC | 285 |
20 |
| Nagravision S.A. | 601 |
19 |
| ARRIS Enterprises LLC | 3437 |
18 |
| AT&T Intellectual Property I, L.P. | 9337 |
16 |
| Ericsson | 21144 |
13 |
| Sony Corporation | 31541 |
11 |
| Turner Broadcasting System, Inc. | 281 |
11 |
| Cox Communications, Inc. | 477 |
11 |
| Irdeto B.V. | 303 |
11 |
| Time Warner Cable Enterprises LLC | 921 |
10 |
| LG Electronics Inc. | 71039 |
9 |
| Intel Corporation | 46126 |
9 |
| Cisco Technology, Inc. | 19347 |
9 |
| Amazon Technologies, Inc. | 25909 |
9 |
| Microsoft Technology Licensing, LLC | 52886 |
9 |
| Other owners | 487 |