- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/6405 - Multicasting
Patent holdings for IPC class H04N 21/6405
Total number of patents in this class: 769
10-year publication summary
|
93
|
84
|
66
|
59
|
52
|
46
|
32
|
27
|
29
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AT&T Intellectual Property I, L.P. | 9697 |
55 |
| Huawei Technologies Co., Ltd. | 116616 |
38 |
| Comcast Cable Communications, LLC | 4894 |
35 |
| ARRIS Enterprises LLC | 3441 |
27 |
| British Telecommunications Public Limited Company | 2650 |
23 |
| Ericsson | 22040 |
23 |
| Apple Inc. | 56633 |
22 |
| Verizon Patent And Licensing Inc. | 7380 |
21 |
| Time Warner Cable Enterprises LLC | 879 |
21 |
| Sony Corporation | 30735 |
18 |
| Samsung Electronics Co., Ltd. | 149838 |
15 |
| LG Electronics Inc. | 73967 |
15 |
| Ericsson AB | 367 |
15 |
| Sony Interactive Entertainment LLC | 2096 |
14 |
| Saturn Licensing LLC | 1442 |
13 |
| Google LLC | 43237 |
12 |
| Qualcomm Incorporated | 88095 |
11 |
| ZTE Corporation | 43178 |
11 |
| Adeia Guides Inc. | 3548 |
11 |
| Telefonaktiebolaget LM Ericsson (publ) | 28475 |
10 |
| Other owners | 359 |