- 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: 8949
10-year publication summary
|
972
|
940
|
878
|
827
|
819
|
746
|
715
|
609
|
495
|
113
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Nielsen Company (US), LLC | 2668 |
785 |
| Adeia Guides Inc. | 3699 |
647 |
| Google LLC | 43671 |
376 |
| Samsung Electronics Co., Ltd. | 153093 |
321 |
| Roku, Inc. | 1539 |
240 |
| DISH Technologies L.L.C. | 1603 |
217 |
| Comcast Cable Communications, LLC | 5035 |
198 |
| AT&T Intellectual Property I, L.P. | 9832 |
193 |
| LG Electronics Inc. | 74848 |
145 |
| Sony Corporation | 30461 |
143 |
| Sonos, Inc. | 2774 |
113 |
| Apple Inc. | 57989 |
111 |
| Microsoft Technology Licensing, LLC | 54210 |
106 |
| Rovi Guides, Inc. | 869 |
105 |
| ARRIS Enterprises LLC | 3436 |
101 |
| Qualcomm Incorporated | 89928 |
86 |
| International Business Machines Corporation | 62148 |
82 |
| Verizon Patent And Licensing Inc. | 7452 |
82 |
| DISH Network L.L.C. | 921 |
74 |
| Sony Group Corporation | 15109 |
71 |
| Other owners | 4753 |