- 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: 2248
10-year publication summary
|
72
|
81
|
161
|
237
|
297
|
283
|
305
|
303
|
263
|
216
|
| 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 105375 |
155 |
| Sony Corporation | 43781 |
122 |
| LG Electronics Inc. | 59921 |
102 |
| AT&T Intellectual Property I, L.P. | 10588 |
72 |
| Qualcomm Incorporated | 59267 |
44 |
| Panasonic Intellectual Property Management Co., Ltd. | 19718 |
43 |
| Intel Corporation | 47308 |
38 |
| Google LLC | 30575 |
32 |
| Avago Technologies International Sales Pte. Limited | 12423 |
32 |
| DISH Technologies L.L.C. | 1370 |
30 |
| Apple Inc. | 37123 |
27 |
| Facebook, Inc. | 8465 |
24 |
| Rovi Guides, Inc. | 1826 |
24 |
| Tencent Technology (Shenzhen) Company Limited | 8291 |
24 |
| Microsoft Technology Licensing, LLC | 47537 |
23 |
| Nokia Technologies Oy | 11160 |
22 |
| ARRIS Enterprises LLC | 2721 |
22 |
| Maxell, Ltd. | 1658 |
22 |
| Comcast Cable Communications, LLC | 2436 |
20 |
| Gracenote, Inc. | 442 |
20 |
| Other owners | 1350 |