Patent holdings for IPC class H04N 21/443

Total number of patents in this class: 1811

10-year publication summary

205
217
227
196
178
165
131
118
109
32
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Samsung Electronics Co., Ltd.
131630
166
LG Electronics Inc.
69257
99
Saturn Licensing LLC
1502
46
Google LLC
38759
43
Roku, Inc.
1151
43
Sony Corporation
32931
42
AT&T Intellectual Property I, L.P.
9886
38
Rovi Guides, Inc.
3236
33
DISH Technologies L.L.C.
1666
33
Apple Inc.
50209
30
Intel Corporation
45621
28
ARRIS Enterprises LLC
3432
28
Qualcomm Incorporated
76576
27
Microsoft Technology Licensing, LLC
51439
26
Comcast Cable Communications, LLC
4075
26
Shenzhen TCL Digital Technology Ltd.
419
22
Hisense Visual Technology Co., Ltd.
725
21
Maxell, Ltd.
2533
20
Verizon Patent And Licensing Inc.
6900
18
Sonos, Inc.
2274
17
Other owners 1005