- 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: 506
10-year publication summary
|
52
|
58
|
40
|
49
|
33
|
36
|
21
|
16
|
12
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Xmatrix LLC | 66 |
25 |
| Comcast Cable Communications, LLC | 5202 |
20 |
| Multimedia Technologies Pte, Ltd | 61 |
20 |
| Google LLC | 44674 |
19 |
| DISH Technologies L.L.C. | 1600 |
17 |
| AT&T Intellectual Property I, L.P. | 10013 |
12 |
| Adeia Guides Inc. | 3969 |
12 |
| The Nielsen Company (US), LLC | 2703 |
11 |
| Samsung Electronics Co., Ltd. | 158605 |
9 |
| LG Electronics Inc. | 75910 |
9 |
| ZTE Corporation | 44288 |
9 |
| ARRIS Enterprises LLC | 3400 |
8 |
| Hisense Visual Technology Co., Ltd. | 1006 |
8 |
| BCE Inc. | 335 |
7 |
| Huawei Technologies Co., Ltd. | 124379 |
6 |
| DIRECTV, LLC | 780 |
6 |
| Roku, Inc. | 1623 |
6 |
| Intel Corporation | 47162 |
5 |
| Enswers Co., Ltd. | 47 |
5 |
| Rovi Guides, Inc. | 808 |
5 |
| Other owners | 287 |