Patent holdings for IPC class H04N 21/2225

Total number of patents in this class: 242

10-year publication summary

6
20
12
51
31
40
34
24
17
13
2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

Principal owners for this class

Owner
All patents
This class
Time Warner Cable Enterprises LLC
973
19
AT&T Intellectual Property I, L.P.
10588
17
Autoconnect Holdings LLC
101
10
Verizon Patent And Licensing Inc.
5272
9
Open Text SA ULC
620
9
Amazon Technologies, Inc.
18542
7
Google Technology Holdings LLC
4962
6
Google LLC
30575
6
Rovi Guides, Inc.
1826
6
Huawei Technologies Co., Ltd.
64407
5
ARRIS Enterprises LLC
2721
5
Grass Valley Canada
60
5
AT&T Intellectual Property II, L.P.
1959
4
Comcast Cable Communications, LLC
2436
4
NBCUniversal Media, LLC
541
4
Maxell, Ltd.
1658
4
Canoe Ventures, LLC
17
3
Sony Interactive Entertainment Inc.
3232
3
TVU Networks Corporation
46
3
Vid Scale, Inc.
344
3
Other owners 110