- 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: 502
10-year publication summary
|
48
|
47
|
56
|
35
|
46
|
31
|
31
|
20
|
14
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Xmatrix LLC | 66 |
25 |
| Comcast Cable Communications, LLC | 4763 |
20 |
| Google LLC | 42564 |
19 |
| Multimedia Technologies Pte, Ltd | 60 |
19 |
| DISH Technologies L.L.C. | 1608 |
18 |
| AT&T Intellectual Property I, L.P. | 9588 |
12 |
| The Nielsen Company (US), LLC | 2657 |
12 |
| Adeia Guides Inc. | 3365 |
11 |
| LG Electronics Inc. | 73578 |
10 |
| ZTE Corporation | 42721 |
9 |
| Samsung Electronics Co., Ltd. | 147622 |
8 |
| BCE Inc. | 395 |
8 |
| Rovi Guides, Inc. | 924 |
7 |
| Hisense Visual Technology Co., Ltd. | 884 |
7 |
| Huawei Technologies Co., Ltd. | 113853 |
6 |
| ARRIS Enterprises LLC | 3475 |
6 |
| DIRECTV, LLC | 781 |
6 |
| Roku, Inc. | 1428 |
6 |
| Intel Corporation | 47129 |
5 |
| Enswers Co., Ltd. | 47 |
5 |
| Other owners | 283 |