- 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: 2303
10-year publication summary
|
397
|
316
|
265
|
255
|
215
|
181
|
109
|
79
|
73
|
36
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73210 |
228 |
| AT&T Intellectual Property I, L.P. | 9520 |
122 |
| Saturn Licensing LLC | 1442 |
110 |
| Samsung Electronics Co., Ltd. | 146534 |
100 |
| Time Warner Cable Enterprises LLC | 886 |
66 |
| Sony Corporation | 31028 |
56 |
| Comcast Cable Communications, LLC | 4728 |
53 |
| Huawei Technologies Co., Ltd. | 113006 |
47 |
| ARRIS Enterprises LLC | 3433 |
46 |
| DISH Technologies L.L.C. | 1606 |
41 |
| Apple Inc. | 55017 |
40 |
| Qualcomm Incorporated | 85550 |
40 |
| Ericsson | 21778 |
33 |
| Cisco Technology, Inc. | 19950 |
24 |
| Amazon Technologies, Inc. | 26741 |
22 |
| ZTE Corporation | 42552 |
22 |
| Adeia Media Holdings LLC | 605 |
22 |
| Avago Technologies International Sales Pte. Limited | 8752 |
21 |
| Turner Broadcasting System, Inc. | 285 |
20 |
| Microsoft Technology Licensing, LLC | 53739 |
19 |
| Other owners | 1171 |