- 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: 8651
10-year publication summary
|
853
|
991
|
952
|
892
|
844
|
836
|
755
|
719
|
598
|
270
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Nielsen Company (US), LLC | 2635 |
762 |
| Adeia Guides Inc. | 3155 |
602 |
| Google LLC | 41766 |
370 |
| Samsung Electronics Co., Ltd. | 143812 |
301 |
| Roku, Inc. | 1367 |
228 |
| DISH Technologies L.L.C. | 1606 |
216 |
| AT&T Intellectual Property I, L.P. | 9459 |
195 |
| Comcast Cable Communications, LLC | 4604 |
186 |
| Sony Corporation | 31157 |
144 |
| LG Electronics Inc. | 72357 |
135 |
| Rovi Guides, Inc. | 943 |
113 |
| Microsoft Technology Licensing, LLC | 53472 |
108 |
| Apple Inc. | 54416 |
104 |
| ARRIS Enterprises LLC | 3428 |
101 |
| Sonos, Inc. | 2557 |
97 |
| Qualcomm Incorporated | 84335 |
86 |
| Verizon Patent And Licensing Inc. | 7062 |
84 |
| International Business Machines Corporation | 60907 |
81 |
| DISH Network L.L.C. | 855 |
70 |
| Sony Group Corporation | 13455 |
63 |
| Other owners | 4605 |