- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/238 - Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
Patent holdings for IPC class H04N 21/238
Total number of patents in this class: 798
10-year publication summary
|
34
|
53
|
109
|
117
|
104
|
80
|
100
|
91
|
78
|
14
|
| 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 43704 |
77 |
| Samsung Electronics Co., Ltd. | 107772 |
38 |
| LG Electronics Inc. | 61477 |
29 |
| Huawei Technologies Co., Ltd. | 68534 |
29 |
| AT&T Intellectual Property I, L.P. | 10770 |
27 |
| ARRIS Enterprises LLC | 2803 |
23 |
| Cisco Technology, Inc. | 19283 |
17 |
| ZTE Corporation | 32883 |
16 |
| NEC Corporation | 27438 |
15 |
| Saturn Licensing LLC | 1558 |
15 |
| DISH Technologies L.L.C. | 1389 |
15 |
| Netflix, Inc. | 626 |
13 |
| Tencent Technology (Shenzhen) Company Limited | 8762 |
13 |
| Ericsson AB | 744 |
12 |
| Google LLC | 31745 |
12 |
| Dejero Labs Inc. | 58 |
11 |
| Ericsson | 17855 |
10 |
| Microsoft Technology Licensing, LLC | 48171 |
10 |
| Sony Interactive Entertainment LLC | 1560 |
10 |
| Amazon Technologies, Inc. | 19545 |
8 |
| Other owners | 398 |