- 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: 957
10-year publication summary
|
104
|
83
|
103
|
99
|
83
|
85
|
71
|
68
|
46
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 31541 |
68 |
| Samsung Electronics Co., Ltd. | 139001 |
40 |
| Huawei Technologies Co., Ltd. | 106762 |
32 |
| ARRIS Enterprises LLC | 3437 |
32 |
| LG Electronics Inc. | 71039 |
30 |
| Netflix, Inc. | 1037 |
25 |
| NEC Corporation | 34413 |
21 |
| Saturn Licensing LLC | 1474 |
19 |
| AT&T Intellectual Property I, L.P. | 9337 |
17 |
| ZTE Corporation | 41061 |
17 |
| DISH Technologies L.L.C. | 1664 |
17 |
| Cisco Technology, Inc. | 19347 |
16 |
| Dejero Labs Inc. | 90 |
16 |
| Comcast Cable Communications, LLC | 4449 |
15 |
| Google LLC | 40853 |
13 |
| Sony Interactive Entertainment LLC | 2003 |
13 |
| Tencent Technology (Shenzhen) Company Limited | 14058 |
13 |
| Ericsson AB | 427 |
12 |
| Amazon Technologies, Inc. | 25909 |
12 |
| Nippon Telegraph and Telephone Corporation | 16332 |
12 |
| Other owners | 517 |