- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/4405 - Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to MPEG-4 scene graphs involving video stream decryption
Patent holdings for IPC class H04N 21/4405
Total number of patents in this class: 652
10-year publication summary
|
85
|
85
|
87
|
56
|
59
|
47
|
43
|
26
|
18
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nagravision S.A. | 626 |
42 |
| Roku, Inc. | 1151 |
31 |
| Samsung Electronics Co., Ltd. | 131630 |
23 |
| DISH Technologies L.L.C. | 1666 |
20 |
| Sony Corporation | 32931 |
19 |
| Google LLC | 38759 |
16 |
| Synamedia Limited | 354 |
15 |
| DivX, LLC | 274 |
14 |
| Irdeto B.V. | 296 |
14 |
| Qualcomm Incorporated | 76576 |
12 |
| Intel Corporation | 45621 |
12 |
| Time Warner Cable Enterprises LLC | 945 |
12 |
| TiVo Solutions Inc. | 287 |
11 |
| Microsoft Technology Licensing, LLC | 51439 |
9 |
| ARRIS Enterprises LLC | 3432 |
9 |
| AT&T Intellectual Property I, L.P. | 9886 |
8 |
| DIRECTV, LLC | 812 |
8 |
| Viaccess | 120 |
8 |
| Nagrastar, LLC | 45 |
7 |
| Sling Media L.L.C. | 199 |
7 |
| Other owners | 355 |