- 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: 2331
10-year publication summary
|
411
|
397
|
316
|
265
|
254
|
215
|
180
|
105
|
78
|
31
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 69257 |
231 |
| AT&T Intellectual Property I, L.P. | 9886 |
133 |
| Saturn Licensing LLC | 1502 |
112 |
| Samsung Electronics Co., Ltd. | 131630 |
101 |
| Time Warner Cable Enterprises LLC | 945 |
68 |
| Sony Corporation | 32931 |
63 |
| DISH Technologies L.L.C. | 1666 |
48 |
| Comcast Cable Communications, LLC | 4075 |
47 |
| Huawei Technologies Co., Ltd. | 100781 |
45 |
| ARRIS Enterprises LLC | 3432 |
41 |
| Apple Inc. | 50209 |
40 |
| Ericsson | 20417 |
37 |
| Qualcomm Incorporated | 76576 |
35 |
| Broadband Itv, Inc. | 71 |
31 |
| Cisco Technology, Inc. | 18858 |
25 |
| Amazon Technologies, Inc. | 24422 |
22 |
| ZTE Corporation | 39218 |
21 |
| Avago Technologies International Sales Pte. Limited | 9260 |
21 |
| Turner Broadcasting System, Inc. | 276 |
20 |
| Sony Interactive Entertainment LLC | 1946 |
20 |
| Other owners | 1170 |