• All sections
  • H - Electricity
  • H04N - Pictorial communication, e.g. television
  • H04N 21/647 - Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load or bridging bet

Patent holdings for IPC class H04N 21/647

Total number of patents in this class: 1396

10-year publication summary

61
120
173
238
217
167
136
131
122
16
2012 2013 2014 2015 2016 2017 2018 2019 2020 2021

Principal owners for this class

Owner
All patents
This class
AT&T Intellectual Property I, L.P.
10780
64
Huawei Technologies Co., Ltd.
68813
45
Samsung Electronics Co., Ltd.
108011
41
Comcast Cable Communications, LLC
2513
40
DISH Technologies L.L.C.
1390
38
ARRIS Enterprises LLC
2811
33
Ericsson
17869
29
Cisco Technology, Inc.
19307
29
LG Electronics Inc.
61670
26
Sony Corporation
43743
26
Time Warner Cable Enterprises LLC
986
22
Amazon Technologies, Inc.
19577
20
Qualcomm Incorporated
59295
19
Verizon Patent And Licensing Inc.
5442
19
ZTE Corporation
32924
19
Ericsson AB
744
18
Google LLC
31798
18
Avago Technologies International Sales Pte. Limited
11936
18
International Business Machines Corporation
72244
17
Intel Corporation
47005
14
Other owners 841