- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/254 - Management at additional data server, e.g. shopping server or rights management server
Patent holdings for IPC class H04N 21/254
Total number of patents in this class: 1639
10-year publication summary
|
296
|
240
|
217
|
187
|
153
|
122
|
105
|
98
|
90
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 40754 |
71 |
| Time Warner Cable Enterprises LLC | 923 |
59 |
| Adeia Guides Inc. | 2817 |
50 |
| AT&T Intellectual Property I, L.P. | 9330 |
40 |
| Comcast Cable Communications, LLC | 4430 |
36 |
| ZTE Corporation | 41038 |
34 |
| Sonos, Inc. | 2454 |
32 |
| DISH Technologies L.L.C. | 1664 |
32 |
| LG Electronics Inc. | 70898 |
30 |
| Samsung Electronics Co., Ltd. | 138518 |
29 |
| The Nielsen Company (US), LLC | 2640 |
28 |
| Sony Corporation | 31565 |
26 |
| Huawei Technologies Co., Ltd. | 106498 |
24 |
| Maxell, Ltd. | 2649 |
24 |
| Broadband Itv, Inc. | 35 |
23 |
| DivX, LLC | 285 |
22 |
| Apple Inc. | 52607 |
20 |
| Verizon Patent And Licensing Inc. | 6937 |
20 |
| Roku, Inc. | 1265 |
20 |
| ARRIS Enterprises LLC | 3441 |
19 |
| Other owners | 1000 |