- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/4402 - 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 reformatting operations of video signals for household redistribution, storage or real-time display
Patent holdings for IPC class H04N 21/4402
Total number of patents in this class: 3079
10-year publication summary
|
286
|
317
|
332
|
298
|
310
|
330
|
272
|
208
|
162
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 139001 |
207 |
| LG Electronics Inc. | 71039 |
170 |
| Sony Corporation | 31541 |
97 |
| Panasonic Intellectual Property Management Co., Ltd. | 29733 |
62 |
| AT&T Intellectual Property I, L.P. | 9337 |
61 |
| Qualcomm Incorporated | 81865 |
55 |
| Maxell, Ltd. | 2659 |
50 |
| Tencent Technology (Shenzhen) Company Limited | 14058 |
48 |
| Roku, Inc. | 1273 |
47 |
| Comcast Cable Communications, LLC | 4449 |
43 |
| Microsoft Technology Licensing, LLC | 52886 |
42 |
| DISH Technologies L.L.C. | 1664 |
41 |
| Sony Interactive Entertainment Inc. | 5517 |
40 |
| Curiouser Products, Inc. | 79 |
40 |
| Adeia Guides Inc. | 2847 |
40 |
| Google LLC | 40853 |
39 |
| Huawei Technologies Co., Ltd. | 106762 |
38 |
| Intel Corporation | 46126 |
36 |
| Nokia Technologies Oy | 16542 |
36 |
| Apple Inc. | 52750 |
34 |
| Other owners | 1853 |