- 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: 1620
10-year publication summary
|
188
|
297
|
240
|
217
|
187
|
153
|
121
|
104
|
95
|
28
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 38759 |
65 |
| Time Warner Cable Enterprises LLC | 945 |
62 |
| AT&T Intellectual Property I, L.P. | 9886 |
43 |
| Rovi Guides, Inc. | 3236 |
41 |
| Broadband Itv, Inc. | 71 |
38 |
| ZTE Corporation | 39218 |
34 |
| DISH Technologies L.L.C. | 1666 |
32 |
| LG Electronics Inc. | 69257 |
30 |
| Comcast Cable Communications, LLC | 4075 |
29 |
| Sonos, Inc. | 2274 |
29 |
| Samsung Electronics Co., Ltd. | 131630 |
28 |
| Roku, Inc. | 1151 |
27 |
| Sony Corporation | 32931 |
26 |
| The Nielsen Company (US), LLC | 2549 |
25 |
| Huawei Technologies Co., Ltd. | 100781 |
24 |
| Maxell, Ltd. | 2533 |
22 |
| Verizon Patent And Licensing Inc. | 6900 |
21 |
| Apple Inc. | 50209 |
20 |
| ARRIS Enterprises LLC | 3432 |
20 |
| DivX, LLC | 274 |
20 |
| Other owners | 984 |