- 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: 4244
10-year publication summary
|
389
|
413
|
412
|
360
|
379
|
357
|
368
|
379
|
279
|
205
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 148924 |
243 |
| LG Electronics Inc. | 73678 |
189 |
| Sonos, Inc. | 2701 |
149 |
| Adeia Guides Inc. | 3485 |
76 |
| Sony Corporation | 30805 |
73 |
| Google LLC | 43044 |
70 |
| Huawei Technologies Co., Ltd. | 115556 |
69 |
| Roku, Inc. | 1460 |
68 |
| DISH Technologies L.L.C. | 1606 |
66 |
| Apple Inc. | 56211 |
65 |
| Saturn Licensing LLC | 1445 |
64 |
| Comcast Cable Communications, LLC | 4846 |
62 |
| ARRIS Enterprises LLC | 3487 |
61 |
| Qualcomm Incorporated | 87475 |
52 |
| Multimedia Technologies Pte, Ltd | 60 |
49 |
| AT&T Intellectual Property I, L.P. | 9661 |
44 |
| Tencent Technology (Shenzhen) Company Limited | 15140 |
44 |
| Winview IP Holdings, LLC | 106 |
43 |
| Amazon Technologies, Inc. | 27203 |
42 |
| Intel Corporation | 46445 |
33 |
| Other owners | 2682 |