- 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: 2984
10-year publication summary
|
300
|
286
|
317
|
332
|
298
|
309
|
330
|
271
|
199
|
46
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 131630 |
205 |
| LG Electronics Inc. | 69257 |
166 |
| Sony Corporation | 32931 |
100 |
| AT&T Intellectual Property I, L.P. | 9886 |
69 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
54 |
| Qualcomm Incorporated | 76576 |
52 |
| Rovi Guides, Inc. | 3236 |
52 |
| Roku, Inc. | 1151 |
46 |
| Tencent Technology (Shenzhen) Company Limited | 12951 |
46 |
| Maxell, Ltd. | 2533 |
45 |
| Curiouser Products, Inc. | 81 |
40 |
| DISH Technologies L.L.C. | 1666 |
40 |
| Microsoft Technology Licensing, LLC | 51439 |
39 |
| Comcast Cable Communications, LLC | 4075 |
39 |
| Sony Interactive Entertainment Inc. | 5162 |
37 |
| Intel Corporation | 45621 |
36 |
| Huawei Technologies Co., Ltd. | 100781 |
36 |
| Nokia Technologies Oy | 15057 |
36 |
| Google LLC | 38759 |
35 |
| Apple Inc. | 50209 |
34 |
| Other owners | 1777 |