Patent holdings for IPC class H04N 21/433

Total number of patents in this class: 3306

10-year publication summary

166
258
439
428
449
463
404
342
298
34
2012 2013 2014 2015 2016 2017 2018 2019 2020 2021

Principal owners for this class

Owner
All patents
This class
Rovi Guides, Inc.
2056
214
DISH Technologies L.L.C.
1389
200
AT&T Intellectual Property I, L.P.
10770
138
Sony Corporation
43704
99
Google LLC
31745
89
Samsung Electronics Co., Ltd.
107772
82
Comcast Cable Communications, LLC
2506
71
Verizon Patent And Licensing Inc.
5436
67
Time Warner Cable Enterprises LLC
986
61
The DIRECTV Group, Inc.
1089
60
TiVo Solutions Inc.
319
60
LG Electronics Inc.
61477
57
Saturn Licensing LLC
1558
53
ARRIS Enterprises LLC
2803
42
Flextronics AP, LLC
603
40
Intel Corporation
46957
33
Maxell, Ltd.
1698
32
Apple Inc.
38919
31
Facebook, Inc.
8487
30
Microsoft Technology Licensing, LLC
48171
29
Other owners 1818