Patent holdings for IPC class H04N 21/2381

Total number of patents in this class: 620

10-year publication summary

19
41
49
60
92
102
72
55
65
53
2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

Principal owners for this class

Owner
All patents
This class
LG Electronics Inc.
59901
121
Samsung Electronics Co., Ltd.
105336
74
Sony Interactive Entertainment LLC
1479
42
Qualcomm Incorporated
59243
21
AT&T Intellectual Property I, L.P.
10575
20
Sony Corporation
43793
19
Coherent Logix, Incorporated
167
14
Saturn Licensing LLC
1584
13
Ericsson
17814
10
ARRIS Enterprises LLC
2729
10
University-industry Cooperation Group of Kyung Hee University
786
10
Panasonic Intellectual Property Corporation of America
4106
9
InterDigital CE Patent Holdings
1263
8
Apple Inc.
37210
7
Cisco Technology, Inc.
19080
6
ARRIS Solutions, Inc.
185
6
Sony Interactive Entertainment America LLC
140
6
Time Warner Cable Enterprises LLC
973
6
Ericsson AB
838
5
Electronics and Telecommunications Research Institute
9257
5
Other owners 208