- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/6375 - Control signals issued by the client directed to the server or network components for requesting retransmission
Patent holdings for IPC class H04N 21/6375
Total number of patents in this class: 171
10-year publication summary
|
11
|
27
|
11
|
13
|
12
|
11
|
7
|
8
|
8
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AT&T Intellectual Property I, L.P. | 9520 |
14 |
| Qualcomm Incorporated | 85550 |
9 |
| Microsoft Technology Licensing, LLC | 53739 |
7 |
| LiveU Ltd. | 49 |
7 |
| Huawei Technologies Co., Ltd. | 113006 |
6 |
| Sony Corporation | 31028 |
5 |
| Snappi, Inc. | 81 |
5 |
| Samsung Electronics Co., Ltd. | 146534 |
4 |
| Yamaha Corporation | 4082 |
4 |
| ZTE Corporation | 42552 |
4 |
| BCE Inc. | 374 |
4 |
| Dialogic Corporation | 88 |
4 |
| Google LLC | 42292 |
4 |
| Sony Group Corporation | 13879 |
4 |
| Snappi Holdco, Inc. | 81 |
4 |
| Apple Inc. | 55017 |
3 |
| LG Electronics Inc. | 73210 |
3 |
| Comcast Cable Communications, LLC | 4728 |
3 |
| Vogo | 28 |
3 |
| Viacom International Inc. | 1528 |
2 |
| Other owners | 72 |