- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/478 - Supplemental services, e.g. displaying phone caller identification or shopping application
Patent holdings for IPC class H04N 21/478
Total number of patents in this class: 2399
10-year publication summary
|
212
|
244
|
209
|
223
|
205
|
217
|
222
|
185
|
152
|
64
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Adeia Guides Inc. | 3932 |
92 |
| Samsung Electronics Co., Ltd. | 158156 |
89 |
| LG Electronics Inc. | 75845 |
89 |
| Sony Interactive Entertainment LLC | 2147 |
89 |
| Sony Interactive Entertainment Inc. | 6452 |
58 |
| AT&T Intellectual Property I, L.P. | 10006 |
53 |
| Turner Broadcasting System, Inc. | 286 |
52 |
| Multimedia Technologies Pte, Ltd | 61 |
50 |
| Enseo, LLC | 252 |
44 |
| Amazon Technologies, Inc. | 28142 |
43 |
| Microsoft Technology Licensing, LLC | 54464 |
43 |
| Winview IP Holdings, LLC | 101 |
42 |
| Google LLC | 44565 |
41 |
| Tencent Technology (Shenzhen) Company Limited | 16006 |
40 |
| Comcast Cable Communications, LLC | 5193 |
38 |
| DISH Network L.L.C. | 953 |
37 |
| META Platforms, Inc. | 6896 |
27 |
| DK Crown Holdings Inc. | 549 |
26 |
| AiBUY Holdco, Inc. | 59 |
26 |
| Saturn Licensing LLC | 1438 |
25 |
| Other owners | 1395 |