- 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: 644
10-year publication summary
|
85
|
87
|
56
|
59
|
47
|
44
|
26
|
19
|
17
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nagravision S.A. | 602 |
42 |
| Roku, Inc. | 1265 |
31 |
| Samsung Electronics Co., Ltd. | 138518 |
23 |
| DISH Technologies L.L.C. | 1664 |
20 |
| Sony Corporation | 31565 |
18 |
| Google LLC | 40754 |
16 |
| DivX, LLC | 285 |
15 |
| Irdeto B.V. | 303 |
14 |
| Synamedia Limited | 345 |
14 |
| Qualcomm Incorporated | 81413 |
13 |
| Intel Corporation | 46097 |
12 |
| Adeia Media Solutions Inc. | 267 |
12 |
| Microsoft Technology Licensing, LLC | 52891 |
11 |
| ARRIS Enterprises LLC | 3441 |
9 |
| AT&T Intellectual Property I, L.P. | 9330 |
8 |
| DIRECTV, LLC | 798 |
8 |
| Viaccess | 112 |
8 |
| Sling Media L.L.C. | 199 |
8 |
| Nagrastar, LLC | 45 |
7 |
| Avago Technologies International Sales Pte. Limited | 8950 |
7 |
| Other owners | 348 |