- 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: 161
10-year publication summary
|
17
|
11
|
27
|
11
|
13
|
12
|
11
|
7
|
8
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AT&T Intellectual Property I, L.P. | 9886 |
15 |
| Qualcomm Incorporated | 76576 |
9 |
| Microsoft Technology Licensing, LLC | 51439 |
7 |
| LiveU Ltd. | 42 |
7 |
| Huawei Technologies Co., Ltd. | 100781 |
6 |
| Sony Corporation | 32931 |
5 |
| Samsung Electronics Co., Ltd. | 131630 |
4 |
| Yamaha Corporation | 4054 |
4 |
| ZTE Corporation | 39218 |
4 |
| BCE Inc. | 431 |
4 |
| Dialogic Corporation | 94 |
4 |
| Google LLC | 38759 |
4 |
| ViaSat, Inc. | 1508 |
4 |
| Sony Group Corporation | 10730 |
4 |
| Apple Inc. | 50209 |
3 |
| Ericsson | 20417 |
3 |
| Comcast Cable Communications, LLC | 4075 |
3 |
| Vogo | 31 |
3 |
| LG Electronics Inc. | 69257 |
2 |
| Viacom International Inc. | 1536 |
2 |
| Other owners | 64 |