- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/432 - Content retrieval operation from a local storage medium, e.g. hard-disk
Patent holdings for IPC class H04N 21/432
Total number of patents in this class: 1025
10-year publication summary
|
67
|
94
|
152
|
141
|
124
|
113
|
104
|
95
|
79
|
3
|
| 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rovi Guides, Inc. | 2056 |
54 |
| AT&T Intellectual Property I, L.P. | 10770 |
43 |
| Flextronics AP, LLC | 603 |
40 |
| DISH Technologies L.L.C. | 1389 |
38 |
| Samsung Electronics Co., Ltd. | 107772 |
36 |
| Sony Corporation | 43704 |
35 |
| Sonos, Inc. | 1452 |
29 |
| LG Electronics Inc. | 61477 |
24 |
| Panasonic Intellectual Property Management Co., Ltd. | 20933 |
24 |
| TiVo Solutions Inc. | 319 |
23 |
| Time Warner Cable Enterprises LLC | 986 |
22 |
| Intel Corporation | 46957 |
21 |
| Google LLC | 31745 |
21 |
| The DIRECTV Group, Inc. | 1089 |
20 |
| Disney Enterprises, Inc. | 5524 |
16 |
| ARRIS Enterprises LLC | 2803 |
16 |
| Apple Inc. | 38919 |
15 |
| Microsoft Technology Licensing, LLC | 48171 |
14 |
| Saturn Licensing LLC | 1558 |
14 |
| Broadcom Corporation | 712 |
13 |
| Other owners | 507 |