- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/437 - Interfacing the upstream path of the transmission network, e.g. for transmitting client requests to a VOD server
Patent holdings for IPC class H04N 21/437
Total number of patents in this class: 694
10-year publication summary
|
104
|
96
|
81
|
63
|
82
|
55
|
47
|
67
|
56
|
15
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Multimedia Technologies Pte, Ltd | 60 |
43 |
| AT&T Intellectual Property I, L.P. | 9886 |
22 |
| Rovi Guides, Inc. | 3236 |
21 |
| Samsung Electronics Co., Ltd. | 131630 |
19 |
| Sony Corporation | 32931 |
18 |
| Intel Corporation | 45621 |
18 |
| Huawei Technologies Co., Ltd. | 100781 |
18 |
| Google LLC | 38759 |
15 |
| Roku, Inc. | 1151 |
14 |
| LG Electronics Inc. | 69257 |
13 |
| Spotify AB | 880 |
13 |
| Comcast Cable Communications, LLC | 4075 |
12 |
| Apple Inc. | 50209 |
11 |
| ARRIS Enterprises LLC | 3432 |
11 |
| TiVo Corporation | 462 |
11 |
| Verizon Patent And Licensing Inc. | 6900 |
10 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
9 |
| Amazon Technologies, Inc. | 24422 |
9 |
| ZTE Corporation | 39218 |
9 |
| Symphony Advanced Media | 15 |
9 |
| Other owners | 389 |