- 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: 2351
10-year publication summary
|
81
|
162
|
237
|
298
|
284
|
309
|
319
|
274
|
294
|
42
|
| 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 107772 |
164 |
| Sony Corporation | 43704 |
126 |
| LG Electronics Inc. | 61477 |
118 |
| AT&T Intellectual Property I, L.P. | 10770 |
76 |
| Qualcomm Incorporated | 59101 |
45 |
| Intel Corporation | 46957 |
42 |
| Panasonic Intellectual Property Management Co., Ltd. | 20933 |
42 |
| DISH Technologies L.L.C. | 1389 |
34 |
| Google LLC | 31745 |
32 |
| Avago Technologies International Sales Pte. Limited | 11944 |
31 |
| Apple Inc. | 38919 |
30 |
| Rovi Guides, Inc. | 2056 |
30 |
| Tencent Technology (Shenzhen) Company Limited | 8762 |
28 |
| Microsoft Technology Licensing, LLC | 48171 |
26 |
| Facebook, Inc. | 8487 |
24 |
| Nokia Technologies Oy | 11471 |
24 |
| ARRIS Enterprises LLC | 2803 |
24 |
| Maxell, Ltd. | 1698 |
23 |
| The Nielsen Company (US), LLC | 2162 |
22 |
| Huawei Technologies Co., Ltd. | 68534 |
21 |
| Other owners | 1389 |