Patent holdings for IPC class H04N 21/8355

Total number of patents in this class: 344

10-year publication summary

9
31
34
50
26
41
30
26
22
17
2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

Principal owners for this class

Owner
All patents
This class
Nagravision S.A.
786
29
Sony Corporation
44071
12
Samsung Electronics Co., Ltd.
106070
10
AT&T Intellectual Property I, L.P.
10648
10
Comcast Cable Communications, LLC
2479
10
Sonos, Inc.
1347
10
Time Warner Cable Enterprises LLC
976
10
Sito Mobile R&D IP, LLC
47
10
ContentGuard Holdings, Inc.
138
8
Huawei Technologies Co., Ltd.
65407
7
Panasonic Corporation
25283
6
Verizon Patent And Licensing Inc.
5315
6
ARRIS Enterprises LLC
2744
6
The DIRECTV Group, Inc.
1106
6
Google LLC
30936
6
Ericsson AB
837
5
Microsoft Technology Licensing, LLC
47885
5
Dotsub Inc.
5
5
General Instrument Corporation
799
5
Saturn Licensing LLC
1588
5
Other owners 173