- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/239 - Interfacing the upstream path of the transmission network, e.g. prioritizing client requests
Patent holdings for IPC class H04N 21/239
Total number of patents in this class: 1550
10-year publication summary
|
218
|
196
|
180
|
174
|
179
|
156
|
165
|
166
|
131
|
36
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 38759 |
75 |
| AT&T Intellectual Property I, L.P. | 9886 |
49 |
| Amazon Technologies, Inc. | 24422 |
37 |
| Turner Broadcasting System, Inc. | 276 |
35 |
| Rovi Guides, Inc. | 3236 |
33 |
| Broadband Itv, Inc. | 71 |
29 |
| Comcast Cable Communications, LLC | 4075 |
28 |
| TiVo Corporation | 462 |
26 |
| Verizon Patent And Licensing Inc. | 6900 |
25 |
| Tencent Technology (Shenzhen) Company Limited | 12951 |
25 |
| TiVo Solutions Inc. | 287 |
22 |
| Huawei Technologies Co., Ltd. | 100781 |
21 |
| ARRIS Enterprises LLC | 3432 |
21 |
| Samsung Electronics Co., Ltd. | 131630 |
20 |
| Time Warner Cable Enterprises LLC | 945 |
20 |
| DISH Technologies L.L.C. | 1666 |
19 |
| ZTE Corporation | 39218 |
18 |
| Charter Communications Operating, LLC | 1054 |
16 |
| TouchTunes Music Company, LLC | 189 |
16 |
| Disney Enterprises, Inc. | 6012 |
15 |
| Other owners | 1000 |