- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/2389 - Multiplex stream processing, e.g. multiplex stream encrypting
Patent holdings for IPC class H04N 21/2389
Total number of patents in this class: 655
10-year publication summary
|
70
|
71
|
58
|
53
|
53
|
104
|
73
|
43
|
35
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Nielsen Company (US), LLC | 2549 |
91 |
| LG Electronics Inc. | 69257 |
61 |
| Roku, Inc. | 1151 |
35 |
| Turner Broadcasting System, Inc. | 276 |
28 |
| Sony Corporation | 32931 |
23 |
| Comcast Cable Communications, LLC | 4075 |
20 |
| Samsung Electronics Co., Ltd. | 131630 |
16 |
| Verance Corporation | 81 |
16 |
| Digimarc Corporation | 787 |
14 |
| Broadcom Corporation | 545 |
13 |
| Saturn Licensing LLC | 1502 |
10 |
| Irdeto B.V. | 296 |
9 |
| Nagravision S.A. | 626 |
9 |
| Time Warner Cable Enterprises LLC | 945 |
9 |
| Synamedia Limited | 354 |
9 |
| Rovi Guides, Inc. | 3236 |
8 |
| Avago Technologies International Sales Pte. Limited | 9260 |
8 |
| Nokia Technologies Oy | 15057 |
7 |
| ARRIS Enterprises LLC | 3432 |
7 |
| DISH Technologies L.L.C. | 1666 |
6 |
| Other owners | 256 |