- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/43 - Processing of content or additional data, e.g. demultiplexing additional data from a digital video streamElementary client operations, e.g. monitoring of home network or synchronizing decoder's clockClient middleware
Patent holdings for IPC class H04N 21/43
Total number of patents in this class: 4338
10-year publication summary
|
427
|
418
|
365
|
393
|
364
|
386
|
384
|
287
|
232
|
71
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 154120 |
249 |
| LG Electronics Inc. | 75045 |
191 |
| Sonos, Inc. | 2799 |
151 |
| Adeia Guides Inc. | 3751 |
81 |
| Sony Corporation | 30388 |
73 |
| Huawei Technologies Co., Ltd. | 120453 |
72 |
| Roku, Inc. | 1555 |
71 |
| Google LLC | 43852 |
70 |
| Comcast Cable Communications, LLC | 5042 |
68 |
| Apple Inc. | 58122 |
66 |
| DISH Technologies L.L.C. | 1604 |
66 |
| Saturn Licensing LLC | 1449 |
65 |
| ARRIS Enterprises LLC | 3438 |
62 |
| Qualcomm Incorporated | 90374 |
54 |
| Multimedia Technologies Pte, Ltd | 60 |
49 |
| Tencent Technology (Shenzhen) Company Limited | 15668 |
45 |
| AT&T Intellectual Property I, L.P. | 9859 |
44 |
| Amazon Technologies, Inc. | 27726 |
43 |
| Winview IP Holdings, LLC | 104 |
43 |
| Disney Enterprises, Inc. | 6245 |
33 |
| Other owners | 2742 |