Patent holdings for IPC class H04N 21/4143

Total number of patents in this class: 191

10-year publication summary

26
25
20
19
16
23
13
6
7
2
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Open Text SA ULC
665
14
Google LLC
38759
12
Apple Inc.
50209
11
TiVo Solutions Inc.
287
11
Microsoft Technology Licensing, LLC
51439
7
Universal Electronics Inc.
687
7
Intel Corporation
45621
6
Rateze Remote Mgmt. L.L.C.
83
5
VMware LLC
6078
5
AT&T Intellectual Property I, L.P.
9886
4
DIRECTV, LLC
812
4
Onstream Media Corporation
7
4
Personalized Media Communications, LLC
103
4
Maxell Holdings, Ltd.
1422
4
Maxell, Ltd.
2533
4
DISH Technologies L.L.C.
1666
4
Avago Technologies International Sales Pte. Limited
9260
4
Sony Corporation
32931
3
Cisco Technology, Inc.
18858
3
Allstate Insurance Company
1695
3
Other owners 72