- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/43 - Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
Patent holdings for IPC class H04N 21/43
Total number of patents in this class: 3911
10-year publication summary
401
|
395
|
426
|
418
|
364
|
390
|
364
|
371
|
358
|
106
|
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 |
217 |
LG Electronics Inc. | 69257 |
184 |
Sonos, Inc. | 2274 |
130 |
Sony Corporation | 32931 |
74 |
Rovi Guides, Inc. | 3236 |
72 |
Saturn Licensing LLC | 1502 |
65 |
DISH Technologies L.L.C. | 1666 |
65 |
Google LLC | 38759 |
63 |
Apple Inc. | 50209 |
62 |
Roku, Inc. | 1151 |
56 |
ARRIS Enterprises LLC | 3432 |
52 |
Huawei Technologies Co., Ltd. | 100781 |
49 |
Multimedia Technologies Pte, Ltd | 60 |
49 |
Comcast Cable Communications, LLC | 4075 |
48 |
Qualcomm Incorporated | 76576 |
46 |
AT&T Intellectual Property I, L.P. | 9886 |
46 |
Winview IP Holdings, LLC | 119 |
43 |
Tencent Technology (Shenzhen) Company Limited | 12951 |
40 |
Amazon Technologies, Inc. | 24422 |
37 |
Intel Corporation | 45621 |
33 |
Other owners | 2480 |