Patent holdings for IPC class H04N 21/2381

Total number of patents in this class: 673

10-year publication summary

102
73
59
70
75
41
36
24
20
11
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
LG Electronics Inc.
72559
152
Samsung Electronics Co., Ltd.
144426
78
Sony Interactive Entertainment LLC
2077
22
ARRIS Enterprises LLC
3428
21
Sony Corporation
31138
20
Coherent Logix, Incorporated
182
20
Saturn Licensing LLC
1447
20
Panasonic Intellectual Property Corporation of America
7622
19
Qualcomm Incorporated
84634
16
AT&T Intellectual Property I, L.P.
9481
12
Sonos, Inc.
2560
11
Ericsson
21622
10
University-industry Cooperation Group of Kyung Hee University
1204
9
InterDigital CE Patent Holdings
711
8
Adeia Media Holdings LLC
616
7
Time Warner Cable Enterprises LLC
899
6
Apple Inc.
54527
5
Comcast Cable Communications, LLC
4638
5
Ericsson AB
395
4
Cisco Technology, Inc.
19655
4
Other owners 224