- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/40 - Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB [set-top-box]; Operations thereof
Patent holdings for IPC class H04N 21/40
Total number of patents in this class: 491
10-year publication summary
|
55
|
52
|
52
|
58
|
40
|
50
|
32
|
34
|
14
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DISH Technologies L.L.C. | 1666 |
21 |
| Multimedia Technologies Pte, Ltd | 60 |
19 |
| Comcast Cable Communications, LLC | 4075 |
18 |
| Kip Prod P1 LP | 40 |
18 |
| Google LLC | 38759 |
17 |
| Rovi Guides, Inc. | 3236 |
15 |
| LG Electronics Inc. | 69257 |
12 |
| AT&T Intellectual Property I, L.P. | 9886 |
12 |
| The Nielsen Company (US), LLC | 2549 |
9 |
| ZTE Corporation | 39218 |
8 |
| BCE Inc. | 431 |
8 |
| Samsung Electronics Co., Ltd. | 131630 |
7 |
| Kip Prod PI LP | 12 |
7 |
| ARRIS Enterprises LLC | 3432 |
6 |
| DIRECTV, LLC | 812 |
6 |
| Hisense Visual Technology Co., Ltd. | 725 |
6 |
| Intel Corporation | 45621 |
5 |
| Huawei Technologies Co., Ltd. | 100781 |
5 |
| Enswers Co., Ltd. | 47 |
5 |
| Roku, Inc. | 1151 |
5 |
| Other owners | 282 |