- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/454 - Content filtering, e.g. blocking advertisements
Patent holdings for IPC class H04N 21/454
Total number of patents in this class: 829
10-year publication summary
|
35
|
66
|
159
|
139
|
133
|
100
|
113
|
87
|
94
|
12
|
| 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rovi Guides, Inc. | 2056 |
77 |
| AT&T Intellectual Property I, L.P. | 10770 |
41 |
| DISH Technologies L.L.C. | 1389 |
39 |
| Autoconnect Holdings LLC | 99 |
26 |
| Time Warner Cable Enterprises LLC | 986 |
24 |
| International Business Machines Corporation | 72126 |
23 |
| Saturn Licensing LLC | 1558 |
22 |
| The DIRECTV Group, Inc. | 1089 |
20 |
| TiVo Solutions Inc. | 319 |
19 |
| Samsung Electronics Co., Ltd. | 107772 |
16 |
| Sony Corporation | 43704 |
16 |
| Koninklijke Philips Electronics N.V. | 23064 |
16 |
| Google LLC | 31745 |
16 |
| LG Electronics Inc. | 61477 |
15 |
| Intel Corporation | 46957 |
12 |
| Verizon Patent And Licensing Inc. | 5436 |
12 |
| Thomson Licensing | 4560 |
12 |
| Microsoft Technology Licensing, LLC | 48171 |
12 |
| Comcast Cable Communications, LLC | 2506 |
11 |
| ViXS Systems, Inc. | 201 |
11 |
| Other owners | 389 |