- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/4425 - Monitoring of client processing errors or hardware failure
Patent holdings for IPC class H04N 21/4425
Total number of patents in this class: 239
10-year publication summary
|
25
|
33
|
26
|
28
|
18
|
14
|
13
|
22
|
17
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 69257 |
17 |
| Sony Corporation | 32931 |
13 |
| DISH Technologies L.L.C. | 1666 |
13 |
| ARRIS Enterprises LLC | 3432 |
9 |
| Samsung Electronics Co., Ltd. | 131630 |
7 |
| Sonos, Inc. | 2274 |
7 |
| Sony Semiconductor Solutions Corporation | 8770 |
6 |
| AT&T Intellectual Property I, L.P. | 9886 |
5 |
| Mux, Inc. | 27 |
5 |
| Sharp Kabushiki Kaisha | 18957 |
5 |
| Mitsubishi Electric Corporation | 43934 |
4 |
| Amobee, Inc. | 80 |
4 |
| DISH Network L.L.C. | 746 |
4 |
| Tencent Technology (Shenzhen) Company Limited | 12951 |
4 |
| Panasonic Corporation | 20786 |
3 |
| Cisco Technology, Inc. | 18858 |
3 |
| Amazon Technologies, Inc. | 24422 |
3 |
| Microsoft Technology Licensing, LLC | 51439 |
3 |
| Accenture Global Solutions Limited | 2132 |
3 |
| Circle Computer Resources, Inc. | 23 |
3 |
| Other owners | 118 |