Patent holdings for IPC class H04N 21/27

Total number of patents in this class: 175

10-year publication summary

23
29
15
7
14
13
10
7
7
4
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Winview IP Holdings, LLC
101
37
LG Electronics Inc.
76087
9
Ericsson
23055
6
Verizon Patent And Licensing Inc.
7677
6
Samsung Electronics Co., Ltd.
159029
5
Time Warner Cable Enterprises LLC
846
5
Google LLC
44796
4
Sony Interactive Entertainment LLC
2192
4
Sony Group Corporation
15978
4
Yahoo Ad Tech LLC
546
4
AT&T Intellectual Property I, L.P.
10038
3
Amazon Technologies, Inc.
28264
3
ZTE Corporation
44374
3
Tagboard, Inc.
9
3
Hisense Visual Technology Co., Ltd.
1013
3
Sony Corporation
30052
2
International Business Machines Corporation
62805
2
Futurewei Technologies, Inc.
3788
2
DISH Network L.L.C.
960
2
Genetec Inc.
345
2
Other owners 66