- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/4147 - PVR [Personal Video Recorder]
Patent holdings for IPC class H04N 21/4147
Total number of patents in this class: 1015
10-year publication summary
|
190
|
123
|
82
|
88
|
79
|
61
|
30
|
45
|
22
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DISH Technologies L.L.C. | 1600 |
111 |
| Adeia Media Solutions Inc. | 271 |
59 |
| Comcast Cable Communications, LLC | 5199 |
55 |
| Adeia Guides Inc. | 3952 |
44 |
| AT&T Intellectual Property I, L.P. | 10002 |
40 |
| DIRECTV, LLC | 780 |
30 |
| DISH Network L.L.C. | 955 |
30 |
| ARRIS Enterprises LLC | 3402 |
27 |
| Time Warner Cable Enterprises LLC | 850 |
27 |
| LG Electronics Inc. | 75855 |
24 |
| Google LLC | 44614 |
23 |
| Samba TV, Inc. | 67 |
21 |
| Verizon Patent And Licensing Inc. | 7668 |
20 |
| Intel Corporation | 47178 |
18 |
| Rovi Guides, Inc. | 808 |
18 |
| Google Technology Holdings LLC | 2055 |
14 |
| Sony Corporation | 30111 |
13 |
| Universal Electronics Inc. | 850 |
11 |
| Sling Media L.L.C. | 171 |
11 |
| META Platforms, Inc. | 6887 |
11 |
| Other owners | 408 |