- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/442 - Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed or the storage space available from the internal hard disk
Patent holdings for IPC class H04N 21/442
Total number of patents in this class: 8141
10-year publication summary
838
|
852
|
990
|
950
|
890
|
840
|
835
|
750
|
697
|
189
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
The Nielsen Company (US), LLC | 2549 |
679 |
Rovi Guides, Inc. | 3236 |
590 |
Google LLC | 38759 |
345 |
Samsung Electronics Co., Ltd. | 131630 |
277 |
DISH Technologies L.L.C. | 1666 |
216 |
AT&T Intellectual Property I, L.P. | 9886 |
215 |
Roku, Inc. | 1151 |
209 |
Comcast Cable Communications, LLC | 4075 |
160 |
Sony Corporation | 32931 |
149 |
LG Electronics Inc. | 69257 |
118 |
Microsoft Technology Licensing, LLC | 51439 |
110 |
ARRIS Enterprises LLC | 3432 |
102 |
Apple Inc. | 50209 |
96 |
Verizon Patent And Licensing Inc. | 6900 |
88 |
International Business Machines Corporation | 60644 |
86 |
Sonos, Inc. | 2274 |
83 |
Qualcomm Incorporated | 76576 |
82 |
Time Warner Cable Enterprises LLC | 945 |
64 |
Saturn Licensing LLC | 1502 |
62 |
DISH Network L.L.C. | 746 |
61 |
Other owners | 4349 |