Patent holdings for IPC class H04N 21/433

Total number of patents in this class: 3254

10-year publication summary

120
166
258
436
427
450
460
390
328
224
2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

Principal owners for this class

Owner
All patents
This class
Rovi Guides, Inc.
1839
204
DISH Technologies L.L.C.
1372
192
AT&T Intellectual Property I, L.P.
10575
137
Sony Corporation
43793
99
Google LLC
30549
86
Samsung Electronics Co., Ltd.
105336
78
Comcast Cable Communications, LLC
2445
73
Verizon Patent And Licensing Inc.
5281
67
TiVo Solutions Inc.
323
60
LG Electronics Inc.
59901
58
Time Warner Cable Enterprises LLC
973
58
The DIRECTV Group, Inc.
1109
57
Saturn Licensing LLC
1584
53
ARRIS Enterprises LLC
2729
43
Flextronics AP, LLC
604
39
Intel Corporation
47169
34
Maxell, Ltd.
1662
33
International Business Machines Corporation
73328
30
Facebook, Inc.
8452
30
Microsoft Technology Licensing, LLC
47447
29
Other owners 1794