- 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 encoded video stream 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: 3222
10-year publication summary
|
317
|
332
|
298
|
310
|
329
|
274
|
214
|
171
|
154
|
52
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 155224 |
241 |
| LG Electronics Inc. | 75274 |
179 |
| Sony Corporation | 30327 |
92 |
| Panasonic Intellectual Property Management Co., Ltd. | 33812 |
64 |
| AT&T Intellectual Property I, L.P. | 9905 |
61 |
| Qualcomm Incorporated | 90870 |
57 |
| Maxell, Ltd. | 2962 |
57 |
| Adeia Guides Inc. | 3823 |
52 |
| Tencent Technology (Shenzhen) Company Limited | 15760 |
51 |
| Comcast Cable Communications, LLC | 5091 |
49 |
| Microsoft Technology Licensing, LLC | 54289 |
47 |
| Roku, Inc. | 1581 |
47 |
| Huawei Technologies Co., Ltd. | 121192 |
46 |
| Sony Interactive Entertainment Inc. | 6332 |
43 |
| Google LLC | 44062 |
41 |
| Curiouser Products, Inc. | 77 |
40 |
| Dolby Laboratories Licensing Corporation | 4289 |
39 |
| Apple Inc. | 58268 |
38 |
| Nokia Technologies Oy | 20731 |
37 |
| Intel Corporation | 46737 |
36 |
| Other owners | 1905 |