• 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