- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/643 - Communication protocols
Patent holdings for IPC class H04N 21/643
Total number of patents in this class: 2314
10-year publication summary
|
384
|
306
|
260
|
247
|
212
|
181
|
106
|
79
|
72
|
49
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73825 |
230 |
| AT&T Intellectual Property I, L.P. | 9682 |
122 |
| Saturn Licensing LLC | 1442 |
109 |
| Samsung Electronics Co., Ltd. | 149198 |
100 |
| Time Warner Cable Enterprises LLC | 883 |
66 |
| Sony Corporation | 30769 |
56 |
| Comcast Cable Communications, LLC | 4881 |
54 |
| Huawei Technologies Co., Ltd. | 116003 |
47 |
| ARRIS Enterprises LLC | 3452 |
46 |
| DISH Technologies L.L.C. | 1607 |
41 |
| Apple Inc. | 56466 |
40 |
| Qualcomm Incorporated | 87720 |
40 |
| Ericsson | 22003 |
33 |
| Cisco Technology, Inc. | 22107 |
24 |
| Amazon Technologies, Inc. | 27247 |
22 |
| ZTE Corporation | 43082 |
22 |
| Adeia Media Holdings LLC | 604 |
22 |
| Turner Broadcasting System, Inc. | 286 |
21 |
| Avago Technologies International Sales Pte. Limited | 8653 |
21 |
| Microsoft Technology Licensing, LLC | 54340 |
20 |
| Other owners | 1178 |