- 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: 3163
10-year publication summary
|
285
|
312
|
328
|
295
|
306
|
324
|
268
|
211
|
166
|
108
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 147501 |
224 |
| LG Electronics Inc. | 73531 |
174 |
| Sony Corporation | 30936 |
95 |
| Panasonic Intellectual Property Management Co., Ltd. | 31806 |
62 |
| AT&T Intellectual Property I, L.P. | 9576 |
61 |
| Qualcomm Incorporated | 86346 |
57 |
| Maxell, Ltd. | 2822 |
56 |
| Tencent Technology (Shenzhen) Company Limited | 14911 |
49 |
| Comcast Cable Communications, LLC | 4740 |
47 |
| Roku, Inc. | 1425 |
47 |
| Microsoft Technology Licensing, LLC | 53891 |
45 |
| Adeia Guides Inc. | 3354 |
45 |
| Sony Interactive Entertainment Inc. | 5917 |
42 |
| Huawei Technologies Co., Ltd. | 113689 |
41 |
| Google LLC | 42540 |
41 |
| Curiouser Products, Inc. | 77 |
40 |
| Apple Inc. | 55387 |
37 |
| ARRIS Enterprises LLC | 3475 |
37 |
| Intel Corporation | 47143 |
36 |
| Nokia Technologies Oy | 18229 |
36 |
| Other owners | 1891 |